diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -381,6 +381,7 @@
     'DifferentialChangesetTwoUpRenderer' => 'applications/differential/render/DifferentialChangesetTwoUpRenderer.php',
     'DifferentialChangesetTwoUpTestRenderer' => 'applications/differential/render/DifferentialChangesetTwoUpTestRenderer.php',
     'DifferentialChangesetViewController' => 'applications/differential/controller/DifferentialChangesetViewController.php',
+    'DifferentialChildRevisionsField' => 'applications/differential/customfield/DifferentialChildRevisionsField.php',
     'DifferentialCloseConduitAPIMethod' => 'applications/differential/conduit/DifferentialCloseConduitAPIMethod.php',
     'DifferentialCommentPreviewController' => 'applications/differential/controller/DifferentialCommentPreviewController.php',
     'DifferentialCommentSaveController' => 'applications/differential/controller/DifferentialCommentSaveController.php',
@@ -407,8 +408,6 @@
     'DifferentialCustomFieldStringIndex' => 'applications/differential/storage/DifferentialCustomFieldStringIndex.php',
     'DifferentialDAO' => 'applications/differential/storage/DifferentialDAO.php',
     'DifferentialDefaultViewCapability' => 'applications/differential/capability/DifferentialDefaultViewCapability.php',
-    'DifferentialDependenciesField' => 'applications/differential/customfield/DifferentialDependenciesField.php',
-    'DifferentialDependsOnField' => 'applications/differential/customfield/DifferentialDependsOnField.php',
     'DifferentialDiff' => 'applications/differential/storage/DifferentialDiff.php',
     'DifferentialDiffAffectedFilesHeraldField' => 'applications/differential/herald/DifferentialDiffAffectedFilesHeraldField.php',
     'DifferentialDiffAuthorHeraldField' => 'applications/differential/herald/DifferentialDiffAuthorHeraldField.php',
@@ -476,6 +475,7 @@
     'DifferentialManiphestTasksField' => 'applications/differential/customfield/DifferentialManiphestTasksField.php',
     'DifferentialModernHunk' => 'applications/differential/storage/DifferentialModernHunk.php',
     'DifferentialNextStepField' => 'applications/differential/customfield/DifferentialNextStepField.php',
+    'DifferentialParentRevisionsField' => 'applications/differential/customfield/DifferentialParentRevisionsField.php',
     'DifferentialParseCacheGarbageCollector' => 'applications/differential/garbagecollector/DifferentialParseCacheGarbageCollector.php',
     'DifferentialParseCommitMessageConduitAPIMethod' => 'applications/differential/conduit/DifferentialParseCommitMessageConduitAPIMethod.php',
     'DifferentialParseRenderTestCase' => 'applications/differential/__tests__/DifferentialParseRenderTestCase.php',
@@ -521,9 +521,13 @@
     'DifferentialRevisionDependsOnRevisionEdgeType' => 'applications/differential/edge/DifferentialRevisionDependsOnRevisionEdgeType.php',
     'DifferentialRevisionEditController' => 'applications/differential/controller/DifferentialRevisionEditController.php',
     'DifferentialRevisionFulltextEngine' => 'applications/differential/search/DifferentialRevisionFulltextEngine.php',
+    'DifferentialRevisionHasChildRelationship' => 'applications/differential/relationships/DifferentialRevisionHasChildRelationship.php',
     'DifferentialRevisionHasCommitEdgeType' => 'applications/differential/edge/DifferentialRevisionHasCommitEdgeType.php',
+    'DifferentialRevisionHasCommitRelationship' => 'applications/differential/relationships/DifferentialRevisionHasCommitRelationship.php',
+    'DifferentialRevisionHasParentRelationship' => 'applications/differential/relationships/DifferentialRevisionHasParentRelationship.php',
     'DifferentialRevisionHasReviewerEdgeType' => 'applications/differential/edge/DifferentialRevisionHasReviewerEdgeType.php',
     'DifferentialRevisionHasTaskEdgeType' => 'applications/differential/edge/DifferentialRevisionHasTaskEdgeType.php',
+    'DifferentialRevisionHasTaskRelationship' => 'applications/differential/relationships/DifferentialRevisionHasTaskRelationship.php',
     'DifferentialRevisionHeraldField' => 'applications/differential/herald/DifferentialRevisionHeraldField.php',
     'DifferentialRevisionHeraldFieldGroup' => 'applications/differential/herald/DifferentialRevisionHeraldFieldGroup.php',
     'DifferentialRevisionIDField' => 'applications/differential/customfield/DifferentialRevisionIDField.php',
@@ -536,6 +540,7 @@
     'DifferentialRevisionPackageHeraldField' => 'applications/differential/herald/DifferentialRevisionPackageHeraldField.php',
     'DifferentialRevisionPackageOwnerHeraldField' => 'applications/differential/herald/DifferentialRevisionPackageOwnerHeraldField.php',
     'DifferentialRevisionQuery' => 'applications/differential/query/DifferentialRevisionQuery.php',
+    'DifferentialRevisionRelationship' => 'applications/differential/relationships/DifferentialRevisionRelationship.php',
     'DifferentialRevisionRelationshipSource' => 'applications/search/relationship/DifferentialRevisionRelationshipSource.php',
     'DifferentialRevisionRepositoryHeraldField' => 'applications/differential/herald/DifferentialRevisionRepositoryHeraldField.php',
     'DifferentialRevisionRepositoryProjectsHeraldField' => 'applications/differential/herald/DifferentialRevisionRepositoryProjectsHeraldField.php',
@@ -601,7 +606,9 @@
     'DiffusionCommitEditController' => 'applications/diffusion/controller/DiffusionCommitEditController.php',
     'DiffusionCommitFulltextEngine' => 'applications/repository/search/DiffusionCommitFulltextEngine.php',
     'DiffusionCommitHasRevisionEdgeType' => 'applications/diffusion/edge/DiffusionCommitHasRevisionEdgeType.php',
+    'DiffusionCommitHasRevisionRelationship' => 'applications/diffusion/relationships/DiffusionCommitHasRevisionRelationship.php',
     'DiffusionCommitHasTaskEdgeType' => 'applications/diffusion/edge/DiffusionCommitHasTaskEdgeType.php',
+    'DiffusionCommitHasTaskRelationship' => 'applications/diffusion/relationships/DiffusionCommitHasTaskRelationship.php',
     'DiffusionCommitHash' => 'applications/diffusion/data/DiffusionCommitHash.php',
     'DiffusionCommitHeraldField' => 'applications/diffusion/herald/DiffusionCommitHeraldField.php',
     'DiffusionCommitHeraldFieldGroup' => 'applications/diffusion/herald/DiffusionCommitHeraldFieldGroup.php',
@@ -615,6 +622,7 @@
     'DiffusionCommitParentsQueryConduitAPIMethod' => 'applications/diffusion/conduit/DiffusionCommitParentsQueryConduitAPIMethod.php',
     'DiffusionCommitQuery' => 'applications/diffusion/query/DiffusionCommitQuery.php',
     'DiffusionCommitRef' => 'applications/diffusion/data/DiffusionCommitRef.php',
+    'DiffusionCommitRelationship' => 'applications/diffusion/relationships/DiffusionCommitRelationship.php',
     'DiffusionCommitRelationshipSource' => 'applications/search/relationship/DiffusionCommitRelationshipSource.php',
     'DiffusionCommitRemarkupRule' => 'applications/diffusion/remarkup/DiffusionCommitRemarkupRule.php',
     'DiffusionCommitRemarkupRuleTestCase' => 'applications/diffusion/remarkup/__tests__/DiffusionCommitRemarkupRuleTestCase.php',
@@ -3867,6 +3875,7 @@
     'PholioMockEmbedView' => 'applications/pholio/view/PholioMockEmbedView.php',
     'PholioMockFulltextEngine' => 'applications/pholio/search/PholioMockFulltextEngine.php',
     'PholioMockHasTaskEdgeType' => 'applications/pholio/edge/PholioMockHasTaskEdgeType.php',
+    'PholioMockHasTaskRelationship' => 'applications/pholio/relationships/PholioMockHasTaskRelationship.php',
     'PholioMockHeraldField' => 'applications/pholio/herald/PholioMockHeraldField.php',
     'PholioMockHeraldFieldGroup' => 'applications/pholio/herald/PholioMockHeraldFieldGroup.php',
     'PholioMockImagesView' => 'applications/pholio/view/PholioMockImagesView.php',
@@ -3875,6 +3884,7 @@
     'PholioMockNameHeraldField' => 'applications/pholio/herald/PholioMockNameHeraldField.php',
     'PholioMockPHIDType' => 'applications/pholio/phid/PholioMockPHIDType.php',
     'PholioMockQuery' => 'applications/pholio/query/PholioMockQuery.php',
+    'PholioMockRelationship' => 'applications/pholio/relationships/PholioMockRelationship.php',
     'PholioMockRelationshipSource' => 'applications/search/relationship/PholioMockRelationshipSource.php',
     'PholioMockSearchEngine' => 'applications/pholio/query/PholioMockSearchEngine.php',
     'PholioMockThumbGridView' => 'applications/pholio/view/PholioMockThumbGridView.php',
@@ -4709,6 +4719,7 @@
     'DifferentialChangesetTwoUpRenderer' => 'DifferentialChangesetHTMLRenderer',
     'DifferentialChangesetTwoUpTestRenderer' => 'DifferentialChangesetTestRenderer',
     'DifferentialChangesetViewController' => 'DifferentialController',
+    'DifferentialChildRevisionsField' => 'DifferentialCustomField',
     'DifferentialCloseConduitAPIMethod' => 'DifferentialConduitAPIMethod',
     'DifferentialCommentPreviewController' => 'DifferentialController',
     'DifferentialCommentSaveController' => 'DifferentialController',
@@ -4735,8 +4746,6 @@
     'DifferentialCustomFieldStringIndex' => 'PhabricatorCustomFieldStringIndexStorage',
     'DifferentialDAO' => 'PhabricatorLiskDAO',
     'DifferentialDefaultViewCapability' => 'PhabricatorPolicyCapability',
-    'DifferentialDependenciesField' => 'DifferentialCustomField',
-    'DifferentialDependsOnField' => 'DifferentialCustomField',
     'DifferentialDiff' => array(
       'DifferentialDAO',
       'PhabricatorPolicyInterface',
@@ -4817,6 +4826,7 @@
     'DifferentialManiphestTasksField' => 'DifferentialCoreCustomField',
     'DifferentialModernHunk' => 'DifferentialHunk',
     'DifferentialNextStepField' => 'DifferentialCustomField',
+    'DifferentialParentRevisionsField' => 'DifferentialCustomField',
     'DifferentialParseCacheGarbageCollector' => 'PhabricatorGarbageCollector',
     'DifferentialParseCommitMessageConduitAPIMethod' => 'DifferentialConduitAPIMethod',
     'DifferentialParseRenderTestCase' => 'PhabricatorTestCase',
@@ -4878,9 +4888,13 @@
     'DifferentialRevisionDependsOnRevisionEdgeType' => 'PhabricatorEdgeType',
     'DifferentialRevisionEditController' => 'DifferentialController',
     'DifferentialRevisionFulltextEngine' => 'PhabricatorFulltextEngine',
+    'DifferentialRevisionHasChildRelationship' => 'DifferentialRevisionRelationship',
     'DifferentialRevisionHasCommitEdgeType' => 'PhabricatorEdgeType',
+    'DifferentialRevisionHasCommitRelationship' => 'DifferentialRevisionRelationship',
+    'DifferentialRevisionHasParentRelationship' => 'DifferentialRevisionRelationship',
     'DifferentialRevisionHasReviewerEdgeType' => 'PhabricatorEdgeType',
     'DifferentialRevisionHasTaskEdgeType' => 'PhabricatorEdgeType',
+    'DifferentialRevisionHasTaskRelationship' => 'DifferentialRevisionRelationship',
     'DifferentialRevisionHeraldField' => 'HeraldField',
     'DifferentialRevisionHeraldFieldGroup' => 'HeraldFieldGroup',
     'DifferentialRevisionIDField' => 'DifferentialCustomField',
@@ -4893,6 +4907,7 @@
     'DifferentialRevisionPackageHeraldField' => 'DifferentialRevisionHeraldField',
     'DifferentialRevisionPackageOwnerHeraldField' => 'DifferentialRevisionHeraldField',
     'DifferentialRevisionQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
+    'DifferentialRevisionRelationship' => 'PhabricatorObjectRelationship',
     'DifferentialRevisionRelationshipSource' => 'PhabricatorObjectRelationshipSource',
     'DifferentialRevisionRepositoryHeraldField' => 'DifferentialRevisionHeraldField',
     'DifferentialRevisionRepositoryProjectsHeraldField' => 'DifferentialRevisionHeraldField',
@@ -4958,7 +4973,9 @@
     'DiffusionCommitEditController' => 'DiffusionController',
     'DiffusionCommitFulltextEngine' => 'PhabricatorFulltextEngine',
     'DiffusionCommitHasRevisionEdgeType' => 'PhabricatorEdgeType',
+    'DiffusionCommitHasRevisionRelationship' => 'DiffusionCommitRelationship',
     'DiffusionCommitHasTaskEdgeType' => 'PhabricatorEdgeType',
+    'DiffusionCommitHasTaskRelationship' => 'DiffusionCommitRelationship',
     'DiffusionCommitHash' => 'Phobject',
     'DiffusionCommitHeraldField' => 'HeraldField',
     'DiffusionCommitHeraldFieldGroup' => 'HeraldFieldGroup',
@@ -4972,6 +4989,7 @@
     'DiffusionCommitParentsQueryConduitAPIMethod' => 'DiffusionQueryConduitAPIMethod',
     'DiffusionCommitQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
     'DiffusionCommitRef' => 'Phobject',
+    'DiffusionCommitRelationship' => 'PhabricatorObjectRelationship',
     'DiffusionCommitRelationshipSource' => 'PhabricatorObjectRelationshipSource',
     'DiffusionCommitRemarkupRule' => 'PhabricatorObjectRemarkupRule',
     'DiffusionCommitRemarkupRuleTestCase' => 'PhabricatorTestCase',
@@ -8793,6 +8811,7 @@
     'PholioMockEmbedView' => 'AphrontView',
     'PholioMockFulltextEngine' => 'PhabricatorFulltextEngine',
     'PholioMockHasTaskEdgeType' => 'PhabricatorEdgeType',
+    'PholioMockHasTaskRelationship' => 'PholioMockRelationship',
     'PholioMockHeraldField' => 'HeraldField',
     'PholioMockHeraldFieldGroup' => 'HeraldFieldGroup',
     'PholioMockImagesView' => 'AphrontView',
@@ -8801,6 +8820,7 @@
     'PholioMockNameHeraldField' => 'PholioMockHeraldField',
     'PholioMockPHIDType' => 'PhabricatorPHIDType',
     'PholioMockQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
+    'PholioMockRelationship' => 'PhabricatorObjectRelationship',
     'PholioMockRelationshipSource' => 'PhabricatorObjectRelationshipSource',
     'PholioMockSearchEngine' => 'PhabricatorApplicationSearchEngine',
     'PholioMockThumbGridView' => 'AphrontView',
diff --git a/src/applications/differential/config/PhabricatorDifferentialConfigOptions.php b/src/applications/differential/config/PhabricatorDifferentialConfigOptions.php
--- a/src/applications/differential/config/PhabricatorDifferentialConfigOptions.php
+++ b/src/applications/differential/config/PhabricatorDifferentialConfigOptions.php
@@ -40,8 +40,8 @@
       new DifferentialViewPolicyField(),
       new DifferentialEditPolicyField(),
 
-      new DifferentialDependsOnField(),
-      new DifferentialDependenciesField(),
+      new DifferentialParentRevisionsField(),
+      new DifferentialChildRevisionsField(),
       new DifferentialManiphestTasksField(),
       new DifferentialCommitsField(),
 
diff --git a/src/applications/differential/controller/DifferentialRevisionViewController.php b/src/applications/differential/controller/DifferentialRevisionViewController.php
--- a/src/applications/differential/controller/DifferentialRevisionViewController.php
+++ b/src/applications/differential/controller/DifferentialRevisionViewController.php
@@ -516,28 +516,6 @@
         ->setDisabled(!$can_edit)
         ->setWorkflow(!$can_edit));
 
-    $this->requireResource('phabricator-object-selector-css');
-    $this->requireResource('javelin-behavior-phabricator-object-selector');
-
-    $curtain->addAction(
-      id(new PhabricatorActionView())
-        ->setIcon('fa-link')
-        ->setName(pht('Edit Dependencies'))
-        ->setHref("/search/attach/{$revision_phid}/DREV/dependencies/")
-        ->setWorkflow(true)
-        ->setDisabled(!$can_edit));
-
-    $maniphest = 'PhabricatorManiphestApplication';
-    if (PhabricatorApplication::isClassInstalled($maniphest)) {
-      $curtain->addAction(
-        id(new PhabricatorActionView())
-          ->setIcon('fa-anchor')
-          ->setName(pht('Edit Maniphest Tasks'))
-          ->setHref("/search/attach/{$revision_phid}/TASK/")
-          ->setWorkflow(true)
-          ->setDisabled(!$can_edit));
-    }
-
     $request_uri = $this->getRequest()->getRequestURI();
     $curtain->addAction(
       id(new PhabricatorActionView())
@@ -545,6 +523,32 @@
         ->setName(pht('Download Raw Diff'))
         ->setHref($request_uri->alter('download', 'true')));
 
+    $relationship_list = PhabricatorObjectRelationshipList::newForObject(
+      $viewer,
+      $revision);
+
+    $parent_key = DifferentialRevisionHasParentRelationship::RELATIONSHIPKEY;
+    $child_key = DifferentialRevisionHasChildRelationship::RELATIONSHIPKEY;
+
+    $revision_submenu = array();
+
+    $revision_submenu[] = $relationship_list->getRelationship($parent_key)
+      ->newAction($revision);
+
+    $revision_submenu[] = $relationship_list->getRelationship($child_key)
+      ->newAction($revision);
+
+    $curtain->addAction(
+      id(new PhabricatorActionView())
+        ->setName(pht('Edit Related Revisions...'))
+        ->setIcon('fa-cog')
+        ->setSubmenu($revision_submenu));
+
+    $relationship_submenu = $relationship_list->newActionMenu();
+    if ($relationship_submenu) {
+      $curtain->addAction($relationship_submenu);
+    }
+
     return $curtain;
   }
 
diff --git a/src/applications/differential/customfield/DifferentialDependenciesField.php b/src/applications/differential/customfield/DifferentialChildRevisionsField.php
rename from src/applications/differential/customfield/DifferentialDependenciesField.php
rename to src/applications/differential/customfield/DifferentialChildRevisionsField.php
--- a/src/applications/differential/customfield/DifferentialDependenciesField.php
+++ b/src/applications/differential/customfield/DifferentialChildRevisionsField.php
@@ -1,6 +1,6 @@
 <?php
 
-final class DifferentialDependenciesField
+final class DifferentialChildRevisionsField
   extends DifferentialCustomField {
 
   public function getFieldKey() {
@@ -8,7 +8,7 @@
   }
 
   public function getFieldName() {
-    return pht('Dependencies');
+    return pht('Child Revisions');
   }
 
   public function canDisableField() {
diff --git a/src/applications/differential/customfield/DifferentialDependsOnField.php b/src/applications/differential/customfield/DifferentialParentRevisionsField.php
rename from src/applications/differential/customfield/DifferentialDependsOnField.php
rename to src/applications/differential/customfield/DifferentialParentRevisionsField.php
--- a/src/applications/differential/customfield/DifferentialDependsOnField.php
+++ b/src/applications/differential/customfield/DifferentialParentRevisionsField.php
@@ -1,6 +1,6 @@
 <?php
 
-final class DifferentialDependsOnField
+final class DifferentialParentRevisionsField
   extends DifferentialCustomField {
 
   public function getFieldKey() {
@@ -12,7 +12,7 @@
   }
 
   public function getFieldName() {
-    return pht('Depends On');
+    return pht('Parent Revisions');
   }
 
   public function canDisableField() {
diff --git a/src/applications/differential/relationships/DifferentialRevisionHasChildRelationship.php b/src/applications/differential/relationships/DifferentialRevisionHasChildRelationship.php
new file mode 100644
--- /dev/null
+++ b/src/applications/differential/relationships/DifferentialRevisionHasChildRelationship.php
@@ -0,0 +1,44 @@
+<?php
+
+final class DifferentialRevisionHasChildRelationship
+  extends DifferentialRevisionRelationship {
+
+  const RELATIONSHIPKEY = 'revision.has-child';
+
+  public function getEdgeConstant() {
+    return DifferentialRevisionDependedOnByRevisionEdgeType::EDGECONST;
+  }
+
+  protected function getActionName() {
+    return pht('Edit Child Revisions');
+  }
+
+  protected function getActionIcon() {
+    return 'fa-chevron-circle-down';
+  }
+
+  public function canRelateObjects($src, $dst) {
+    return ($dst instanceof DifferentialRevision);
+  }
+
+  public function shouldAppearInActionMenu() {
+    return false;
+  }
+
+  public function getDialogTitleText() {
+    return pht('Edit Child Revisions');
+  }
+
+  public function getDialogHeaderText() {
+    return pht('Current Child Revisions');
+  }
+
+  public function getDialogButtonText() {
+    return pht('Save Child Revisions');
+  }
+
+  protected function newRelationshipSource() {
+    return new DifferentialRevisionRelationshipSource();
+  }
+
+}
diff --git a/src/applications/differential/relationships/DifferentialRevisionHasCommitRelationship.php b/src/applications/differential/relationships/DifferentialRevisionHasCommitRelationship.php
new file mode 100644
--- /dev/null
+++ b/src/applications/differential/relationships/DifferentialRevisionHasCommitRelationship.php
@@ -0,0 +1,40 @@
+<?php
+
+final class DifferentialRevisionHasCommitRelationship
+  extends DifferentialRevisionRelationship {
+
+  const RELATIONSHIPKEY = 'revision.has-commit';
+
+  public function getEdgeConstant() {
+    return DifferentialRevisionHasCommitEdgeType::EDGECONST;
+  }
+
+  protected function getActionName() {
+    return pht('Edit Commits');
+  }
+
+  protected function getActionIcon() {
+    return 'fa-code';
+  }
+
+  public function canRelateObjects($src, $dst) {
+    return ($dst instanceof PhabricatorRepositoryCommit);
+  }
+
+  public function getDialogTitleText() {
+    return pht('Edit Related Commits');
+  }
+
+  public function getDialogHeaderText() {
+    return pht('Current Commits');
+  }
+
+  public function getDialogButtonText() {
+    return pht('Save Related Commits');
+  }
+
+  protected function newRelationshipSource() {
+    return new DiffusionCommitRelationshipSource();
+  }
+
+}
diff --git a/src/applications/differential/relationships/DifferentialRevisionHasParentRelationship.php b/src/applications/differential/relationships/DifferentialRevisionHasParentRelationship.php
new file mode 100644
--- /dev/null
+++ b/src/applications/differential/relationships/DifferentialRevisionHasParentRelationship.php
@@ -0,0 +1,44 @@
+<?php
+
+final class DifferentialRevisionHasParentRelationship
+  extends DifferentialRevisionRelationship {
+
+  const RELATIONSHIPKEY = 'revision.has-parent';
+
+  public function getEdgeConstant() {
+    return DifferentialRevisionDependsOnRevisionEdgeType::EDGECONST;
+  }
+
+  protected function getActionName() {
+    return pht('Edit Parent Revisions');
+  }
+
+  protected function getActionIcon() {
+    return 'fa-chevron-circle-up';
+  }
+
+  public function canRelateObjects($src, $dst) {
+    return ($dst instanceof DifferentialRevision);
+  }
+
+  public function shouldAppearInActionMenu() {
+    return false;
+  }
+
+  public function getDialogTitleText() {
+    return pht('Edit Parent Revisions');
+  }
+
+  public function getDialogHeaderText() {
+    return pht('Current Parent Revisions');
+  }
+
+  public function getDialogButtonText() {
+    return pht('Save Parent Revisions');
+  }
+
+  protected function newRelationshipSource() {
+    return new DifferentialRevisionRelationshipSource();
+  }
+
+}
diff --git a/src/applications/differential/relationships/DifferentialRevisionHasTaskRelationship.php b/src/applications/differential/relationships/DifferentialRevisionHasTaskRelationship.php
new file mode 100644
--- /dev/null
+++ b/src/applications/differential/relationships/DifferentialRevisionHasTaskRelationship.php
@@ -0,0 +1,40 @@
+<?php
+
+final class DifferentialRevisionHasTaskRelationship
+  extends DifferentialRevisionRelationship {
+
+  const RELATIONSHIPKEY = 'revision.has-task';
+
+  public function getEdgeConstant() {
+    return DifferentialRevisionHasTaskEdgeType::EDGECONST;
+  }
+
+  protected function getActionName() {
+    return pht('Edit Tasks');
+  }
+
+  protected function getActionIcon() {
+    return 'fa-anchor';
+  }
+
+  public function canRelateObjects($src, $dst) {
+    return ($dst instanceof ManiphestTask);
+  }
+
+  public function getDialogTitleText() {
+    return pht('Edit Related Tasks');
+  }
+
+  public function getDialogHeaderText() {
+    return pht('Current Tasks');
+  }
+
+  public function getDialogButtonText() {
+    return pht('Save Related Tasks');
+  }
+
+  protected function newRelationshipSource() {
+    return new ManiphestTaskRelationshipSource();
+  }
+
+}
diff --git a/src/applications/differential/relationships/DifferentialRevisionRelationship.php b/src/applications/differential/relationships/DifferentialRevisionRelationship.php
new file mode 100644
--- /dev/null
+++ b/src/applications/differential/relationships/DifferentialRevisionRelationship.php
@@ -0,0 +1,19 @@
+<?php
+
+abstract class DifferentialRevisionRelationship
+  extends PhabricatorObjectRelationship {
+
+  public function isEnabledForObject($object) {
+    $viewer = $this->getViewer();
+
+    $has_app = PhabricatorApplication::isClassInstalledForViewer(
+      'PhabricatorDifferentialApplication',
+      $viewer);
+    if (!$has_app) {
+      return false;
+    }
+
+    return ($object instanceof DifferentialRevision);
+  }
+
+}
diff --git a/src/applications/diffusion/controller/DiffusionCommitController.php b/src/applications/diffusion/controller/DiffusionCommitController.php
--- a/src/applications/diffusion/controller/DiffusionCommitController.php
+++ b/src/applications/diffusion/controller/DiffusionCommitController.php
@@ -968,26 +968,21 @@
       ->setWorkflow(!$can_edit);
     $curtain->addAction($action);
 
-    require_celerity_resource('phabricator-object-selector-css');
-    require_celerity_resource('javelin-behavior-phabricator-object-selector');
-
-    $maniphest = 'PhabricatorManiphestApplication';
-    if (PhabricatorApplication::isClassInstalled($maniphest)) {
-      $action = id(new PhabricatorActionView())
-        ->setName(pht('Edit Maniphest Tasks'))
-        ->setIcon('fa-anchor')
-        ->setHref('/search/attach/'.$commit->getPHID().'/TASK/edge/')
-        ->setWorkflow(true)
-        ->setDisabled(!$can_edit);
-      $curtain->addAction($action);
-    }
-
     $action = id(new PhabricatorActionView())
       ->setName(pht('Download Raw Diff'))
       ->setHref($request->getRequestURI()->alter('diff', true))
       ->setIcon('fa-download');
     $curtain->addAction($action);
 
+    $relationship_list = PhabricatorObjectRelationshipList::newForObject(
+      $viewer,
+      $commit);
+
+    $relationship_submenu = $relationship_list->newActionMenu();
+    if ($relationship_submenu) {
+      $curtain->addAction($relationship_submenu);
+    }
+
     return $curtain;
   }
 
diff --git a/src/applications/diffusion/relationships/DiffusionCommitHasRevisionRelationship.php b/src/applications/diffusion/relationships/DiffusionCommitHasRevisionRelationship.php
new file mode 100644
--- /dev/null
+++ b/src/applications/diffusion/relationships/DiffusionCommitHasRevisionRelationship.php
@@ -0,0 +1,40 @@
+<?php
+
+final class DiffusionCommitHasRevisionRelationship
+  extends DiffusionCommitRelationship {
+
+  const RELATIONSHIPKEY = 'commit.has-revision';
+
+  public function getEdgeConstant() {
+    return DiffusionCommitHasRevisionEdgeType::EDGECONST;
+  }
+
+  protected function getActionName() {
+    return pht('Edit Revisions');
+  }
+
+  protected function getActionIcon() {
+    return 'fa-cog';
+  }
+
+  public function canRelateObjects($src, $dst) {
+    return ($dst instanceof DifferentialRevision);
+  }
+
+  public function getDialogTitleText() {
+    return pht('Edit Related Revisions');
+  }
+
+  public function getDialogHeaderText() {
+    return pht('Current Revisions');
+  }
+
+  public function getDialogButtonText() {
+    return pht('Save Related Revisions');
+  }
+
+  protected function newRelationshipSource() {
+    return new DifferentialRevisionRelationshipSource();
+  }
+
+}
diff --git a/src/applications/diffusion/relationships/DiffusionCommitHasTaskRelationship.php b/src/applications/diffusion/relationships/DiffusionCommitHasTaskRelationship.php
new file mode 100644
--- /dev/null
+++ b/src/applications/diffusion/relationships/DiffusionCommitHasTaskRelationship.php
@@ -0,0 +1,40 @@
+<?php
+
+final class DiffusionCommitHasTaskRelationship
+  extends DiffusionCommitRelationship {
+
+  const RELATIONSHIPKEY = 'commit.has-task';
+
+  public function getEdgeConstant() {
+    return DiffusionCommitHasTaskEdgeType::EDGECONST;
+  }
+
+  protected function getActionName() {
+    return pht('Edit Tasks');
+  }
+
+  protected function getActionIcon() {
+    return 'fa-anchor';
+  }
+
+  public function canRelateObjects($src, $dst) {
+    return ($dst instanceof ManiphestTask);
+  }
+
+  public function getDialogTitleText() {
+    return pht('Edit Related Tasks');
+  }
+
+  public function getDialogHeaderText() {
+    return pht('Current Tasks');
+  }
+
+  public function getDialogButtonText() {
+    return pht('Save Related Tasks');
+  }
+
+  protected function newRelationshipSource() {
+    return new ManiphestTaskRelationshipSource();
+  }
+
+}
diff --git a/src/applications/diffusion/relationships/DiffusionCommitRelationship.php b/src/applications/diffusion/relationships/DiffusionCommitRelationship.php
new file mode 100644
--- /dev/null
+++ b/src/applications/diffusion/relationships/DiffusionCommitRelationship.php
@@ -0,0 +1,19 @@
+<?php
+
+abstract class DiffusionCommitRelationship
+  extends PhabricatorObjectRelationship {
+
+  public function isEnabledForObject($object) {
+    $viewer = $this->getViewer();
+
+    $has_app = PhabricatorApplication::isClassInstalledForViewer(
+      'PhabricatorDiffusionApplication',
+      $viewer);
+    if (!$has_app) {
+      return false;
+    }
+
+    return ($object instanceof PhabricatorRepositoryCommit);
+  }
+
+}
diff --git a/src/applications/pholio/controller/PholioMockViewController.php b/src/applications/pholio/controller/PholioMockViewController.php
--- a/src/applications/pholio/controller/PholioMockViewController.php
+++ b/src/applications/pholio/controller/PholioMockViewController.php
@@ -150,13 +150,14 @@
         ->setWorkflow(true));
     }
 
-    $curtain->addAction(
-      id(new PhabricatorActionView())
-      ->setIcon('fa-anchor')
-      ->setName(pht('Edit Maniphest Tasks'))
-      ->setHref("/search/attach/{$mock->getPHID()}/TASK/edge/")
-      ->setDisabled(!$viewer->isLoggedIn())
-      ->setWorkflow(true));
+    $relationship_list = PhabricatorObjectRelationshipList::newForObject(
+      $viewer,
+      $mock);
+
+    $relationship_submenu = $relationship_list->newActionMenu();
+    if ($relationship_submenu) {
+      $curtain->addAction($relationship_submenu);
+    }
 
     if ($this->getManiphestTaskPHIDs()) {
       $curtain->newPanel()
diff --git a/src/applications/pholio/relationships/PholioMockHasTaskRelationship.php b/src/applications/pholio/relationships/PholioMockHasTaskRelationship.php
new file mode 100644
--- /dev/null
+++ b/src/applications/pholio/relationships/PholioMockHasTaskRelationship.php
@@ -0,0 +1,40 @@
+<?php
+
+final class PholioMockHasTaskRelationship
+  extends PholioMockRelationship {
+
+  const RELATIONSHIPKEY = 'mock.has-task';
+
+  public function getEdgeConstant() {
+    return PholioMockHasTaskEdgeType::EDGECONST;
+  }
+
+  protected function getActionName() {
+    return pht('Edit Tasks');
+  }
+
+  protected function getActionIcon() {
+    return 'fa-anchor';
+  }
+
+  public function canRelateObjects($src, $dst) {
+    return ($dst instanceof ManiphestTask);
+  }
+
+  public function getDialogTitleText() {
+    return pht('Edit Related Tasks');
+  }
+
+  public function getDialogHeaderText() {
+    return pht('Current Tasks');
+  }
+
+  public function getDialogButtonText() {
+    return pht('Save Related Tasks');
+  }
+
+  protected function newRelationshipSource() {
+    return new ManiphestTaskRelationshipSource();
+  }
+
+}
diff --git a/src/applications/pholio/relationships/PholioMockRelationship.php b/src/applications/pholio/relationships/PholioMockRelationship.php
new file mode 100644
--- /dev/null
+++ b/src/applications/pholio/relationships/PholioMockRelationship.php
@@ -0,0 +1,19 @@
+<?php
+
+abstract class PholioMockRelationship
+  extends PhabricatorObjectRelationship {
+
+  public function isEnabledForObject($object) {
+    $viewer = $this->getViewer();
+
+    $has_app = PhabricatorApplication::isClassInstalledForViewer(
+      'PhabricatorPholioApplication',
+      $viewer);
+    if (!$has_app) {
+      return false;
+    }
+
+    return ($object instanceof PholioMock);
+  }
+
+}
diff --git a/src/applications/search/relationship/DifferentialRevisionRelationshipSource.php b/src/applications/search/relationship/DifferentialRevisionRelationshipSource.php
--- a/src/applications/search/relationship/DifferentialRevisionRelationshipSource.php
+++ b/src/applications/search/relationship/DifferentialRevisionRelationshipSource.php
@@ -3,6 +3,14 @@
 final class DifferentialRevisionRelationshipSource
   extends PhabricatorObjectRelationshipSource {
 
+  public function isEnabledForObject($object) {
+    $viewer = $this->getViewer();
+
+    return PhabricatorApplication::isClassInstalledForViewer(
+      'PhabricatorDifferentialApplication',
+      $viewer);
+  }
+
   public function getResultPHIDTypes() {
     return array(
       DifferentialRevisionPHIDType::TYPECONST,
diff --git a/src/applications/search/relationship/DiffusionCommitRelationshipSource.php b/src/applications/search/relationship/DiffusionCommitRelationshipSource.php
--- a/src/applications/search/relationship/DiffusionCommitRelationshipSource.php
+++ b/src/applications/search/relationship/DiffusionCommitRelationshipSource.php
@@ -3,6 +3,14 @@
 final class DiffusionCommitRelationshipSource
   extends PhabricatorObjectRelationshipSource {
 
+  public function isEnabledForObject($object) {
+    $viewer = $this->getViewer();
+
+    return PhabricatorApplication::isClassInstalledForViewer(
+      'PhabricatorDiffusionApplication',
+      $viewer);
+  }
+
   public function getResultPHIDTypes() {
     return array(
       PhabricatorRepositoryCommitPHIDType::TYPECONST,
diff --git a/src/applications/search/relationship/ManiphestTaskRelationshipSource.php b/src/applications/search/relationship/ManiphestTaskRelationshipSource.php
--- a/src/applications/search/relationship/ManiphestTaskRelationshipSource.php
+++ b/src/applications/search/relationship/ManiphestTaskRelationshipSource.php
@@ -3,6 +3,14 @@
 final class ManiphestTaskRelationshipSource
   extends PhabricatorObjectRelationshipSource {
 
+  public function isEnabledForObject($object) {
+    $viewer = $this->getViewer();
+
+    return PhabricatorApplication::isClassInstalledForViewer(
+      'PhabricatorManiphestApplication',
+      $viewer);
+  }
+
   public function getResultPHIDTypes() {
     return array(
       ManiphestTaskPHIDType::TYPECONST,
diff --git a/src/applications/search/relationship/PhabricatorObjectRelationship.php b/src/applications/search/relationship/PhabricatorObjectRelationship.php
--- a/src/applications/search/relationship/PhabricatorObjectRelationship.php
+++ b/src/applications/search/relationship/PhabricatorObjectRelationship.php
@@ -54,7 +54,10 @@
   }
 
   final public function newSource() {
-    return $this->newRelationshipSource();
+    $viewer = $this->getViewer();
+
+    return $this->newRelationshipSource()
+      ->setViewer($viewer);
   }
 
   abstract protected function newRelationshipSource();
diff --git a/src/applications/search/relationship/PhabricatorObjectRelationshipList.php b/src/applications/search/relationship/PhabricatorObjectRelationshipList.php
--- a/src/applications/search/relationship/PhabricatorObjectRelationshipList.php
+++ b/src/applications/search/relationship/PhabricatorObjectRelationshipList.php
@@ -87,6 +87,11 @@
         continue;
       }
 
+      $source = $relationship->newSource();
+      if (!$source->isEnabledForObject($object)) {
+        continue;
+      }
+
       $results[$key] = $relationship;
     }
 
diff --git a/src/applications/search/relationship/PhabricatorObjectRelationshipSource.php b/src/applications/search/relationship/PhabricatorObjectRelationshipSource.php
--- a/src/applications/search/relationship/PhabricatorObjectRelationshipSource.php
+++ b/src/applications/search/relationship/PhabricatorObjectRelationshipSource.php
@@ -2,6 +2,18 @@
 
 abstract class PhabricatorObjectRelationshipSource extends Phobject {
 
+  private $viewer;
+
+  final public function setViewer(PhabricatorUser $viewer) {
+    $this->viewer = $viewer;
+    return $this;
+  }
+
+  final public function getViewer() {
+    return $this->viewer;
+  }
+
+  abstract public function isEnabledForObject($object);
   abstract public function getResultPHIDTypes();
 
 }
diff --git a/src/applications/search/relationship/PholioMockRelationshipSource.php b/src/applications/search/relationship/PholioMockRelationshipSource.php
--- a/src/applications/search/relationship/PholioMockRelationshipSource.php
+++ b/src/applications/search/relationship/PholioMockRelationshipSource.php
@@ -3,6 +3,14 @@
 final class PholioMockRelationshipSource
   extends PhabricatorObjectRelationshipSource {
 
+  public function isEnabledForObject($object) {
+    $viewer = $this->getViewer();
+
+    return PhabricatorApplication::isClassInstalledForViewer(
+      'PhabricatorPholioApplication',
+      $viewer);
+  }
+
   public function getResultPHIDTypes() {
     return array(
       PholioMockPHIDType::TYPECONST,