diff --git a/src/applications/diffusion/panel/DiffusionSetPasswordPanel.php b/src/applications/diffusion/panel/DiffusionSetPasswordPanel.php
--- a/src/applications/diffusion/panel/DiffusionSetPasswordPanel.php
+++ b/src/applications/diffusion/panel/DiffusionSetPasswordPanel.php
@@ -2,6 +2,10 @@
 
 final class DiffusionSetPasswordPanel extends PhabricatorSettingsPanel {
 
+  public function isEditableByAdministrators() {
+    return true;
+  }
+
   public function getPanelKey() {
     return 'vcspassword';
   }
@@ -19,7 +23,8 @@
   }
 
   public function processRequest(AphrontRequest $request) {
-    $user = $request->getUser();
+    $viewer = $request->getUser();
+    $user = $this->getUser();
 
     $vcspassword = id(new PhabricatorRepositoryVCSPassword())
       ->loadOneWhere(
@@ -68,7 +73,12 @@
           $e_password = pht('Does Not Match');
           $e_confirm = pht('Does Not Match');
           $errors[] = pht('Password and confirmation do not match.');
-        } else if ($user->comparePassword($envelope)) {
+        } else if ($viewer->comparePassword($envelope)) {
+          // NOTE: The above test is against $viewer (not $user), so that the
+          // error message below makes sense in the case that the two are
+          // different, and because an admin reusing their own password is bad,
+          // while system agents generally do not have passwords anyway.
+
           $e_password = pht('Not Unique');
           $e_confirm = pht('Not Unique');
           $errors[] = pht(
@@ -97,7 +107,7 @@
     $title = pht('Set VCS Password');
 
     $form = id(new AphrontFormView())
-      ->setUser($user)
+      ->setUser($viewer)
       ->appendRemarkupInstructions(
         pht(
           'To access repositories hosted by Phabricator over HTTP, you must '.
@@ -193,7 +203,7 @@
       ->setFormErrors($errors);
 
     $remove_form = id(new AphrontFormView())
-      ->setUser($user);
+      ->setUser($viewer);
 
     if ($vcspassword->getID()) {
       $remove_form
diff --git a/src/applications/people/controller/PhabricatorPeopleEditController.php b/src/applications/people/controller/PhabricatorPeopleEditController.php
--- a/src/applications/people/controller/PhabricatorPeopleEditController.php
+++ b/src/applications/people/controller/PhabricatorPeopleEditController.php
@@ -35,7 +35,6 @@
     $nav->setBaseURI(new PhutilURI($base_uri));
     $nav->addLabel(pht('User Information'));
     $nav->addFilter('basic', pht('Basic Information'));
-    $nav->addFilter('cert', pht('Conduit Certificate'));
     $nav->addFilter('profile',
       pht('View Profile'), '/p/'.$user->getUsername().'/');
 
@@ -60,9 +59,6 @@
       case 'basic':
         $response = $this->processBasicRequest($user);
         break;
-      case 'cert':
-        $response = $this->processCertificateRequest($user);
-        break;
       default:
         return new Aphront404Response();
     }
@@ -327,47 +323,6 @@
     return array($form_box);
   }
 
-  private function processCertificateRequest($user) {
-    $request = $this->getRequest();
-    $admin = $request->getUser();
-
-    $inst = pht('You can use this certificate '.
-        'to write scripts or bots which interface with Phabricator over '.
-        'Conduit.');
-    $form = new AphrontFormView();
-    $form
-      ->setUser($admin)
-      ->setAction($request->getRequestURI())
-      ->appendChild(
-        phutil_tag('p', array('class' => 'aphront-form-instructions'), $inst));
-
-    if ($user->getIsSystemAgent()) {
-      $form
-        ->appendChild(
-          id(new AphrontFormTextControl())
-            ->setLabel(pht('Username'))
-            ->setValue($user->getUsername()))
-        ->appendChild(
-          id(new AphrontFormTextAreaControl())
-            ->setLabel(pht('Certificate'))
-            ->setValue($user->getConduitCertificate()));
-    } else {
-      $form->appendChild(
-        id(new AphrontFormStaticControl())
-          ->setLabel(pht('Certificate'))
-          ->setValue(
-            pht('You may only view the certificates of System Agents.')));
-    }
-
-    $title = pht('Conduit Certificate');
-
-    $form_box = id(new PHUIObjectBoxView())
-      ->setHeaderText($title)
-      ->setForm($form);
-
-    return array($form_box);
-  }
-
   private function getRoleInstructions() {
     $roles_link = phutil_tag(
       'a',
diff --git a/src/applications/people/controller/PhabricatorPeopleProfileController.php b/src/applications/people/controller/PhabricatorPeopleProfileController.php
--- a/src/applications/people/controller/PhabricatorPeopleProfileController.php
+++ b/src/applications/people/controller/PhabricatorPeopleProfileController.php
@@ -64,6 +64,14 @@
         ->setWorkflow(!$can_edit));
 
     if ($viewer->getIsAdmin()) {
+      $actions->addAction(
+        id(new PhabricatorActionView())
+          ->setIcon('wrench')
+          ->setName(pht('Edit Settings'))
+          ->setDisabled(!$can_edit)
+          ->setWorkflow(!$can_edit)
+          ->setHref('/settings/'.$user->getID().'/'));
+
       if ($user->getIsAdmin()) {
         $empower_icon = 'lower-priority';
         $empower_name = pht('Remove Administrator');
diff --git a/src/applications/settings/application/PhabricatorApplicationSettings.php b/src/applications/settings/application/PhabricatorApplicationSettings.php
--- a/src/applications/settings/application/PhabricatorApplicationSettings.php
+++ b/src/applications/settings/application/PhabricatorApplicationSettings.php
@@ -21,7 +21,8 @@
   public function getRoutes() {
     return array(
       '/settings/' => array(
-        '(?:panel/(?P<key>[^/]+)/)?' => 'PhabricatorSettingsMainController',
+        '(?:(?P<id>\d+)/)?(?:panel/(?P<key>[^/]+)/)?'
+          => 'PhabricatorSettingsMainController',
         'adjust/' => 'PhabricatorSettingsAdjustController',
       ),
     );
diff --git a/src/applications/settings/controller/PhabricatorSettingsMainController.php b/src/applications/settings/controller/PhabricatorSettingsMainController.php
--- a/src/applications/settings/controller/PhabricatorSettingsMainController.php
+++ b/src/applications/settings/controller/PhabricatorSettingsMainController.php
@@ -3,14 +3,48 @@
 final class PhabricatorSettingsMainController
   extends PhabricatorController {
 
+  private $id;
   private $key;
+  private $user;
+
+  private function getUser() {
+    return $this->user;
+  }
+
+  private function isSelf() {
+    $viewer_phid = $this->getRequest()->getUser()->getPHID();
+    $user_phid = $this->getUser()->getPHID();
+    return ($viewer_phid == $user_phid);
+  }
 
   public function willProcessRequest(array $data) {
+    $this->id = idx($data, 'id');
     $this->key = idx($data, 'key');
   }
 
   public function processRequest() {
     $request = $this->getRequest();
+    $viewer = $request->getUser();
+
+    if ($this->id) {
+      $user = id(new PhabricatorPeopleQuery())
+        ->setViewer($viewer)
+        ->withIDs(array($this->id))
+        ->requireCapabilities(
+          array(
+            PhabricatorPolicyCapability::CAN_VIEW,
+            PhabricatorPolicyCapability::CAN_EDIT,
+          ))
+        ->executeOne();
+
+      if (!$user) {
+        return new Aphront404Response();
+      }
+
+      $this->user = $user;
+    } else {
+      $this->user = $viewer;
+    }
 
     $panels = $this->buildPanels();
     $nav = $this->renderSideNav($panels);
@@ -19,13 +53,27 @@
 
 
     $panel = $panels[$key];
+    $panel->setUser($this->getUser());
+    $panel->setViewer($viewer);
 
     $response = $panel->processRequest($request);
     if ($response instanceof AphrontResponse) {
       return $response;
     }
 
-    $nav->appendChild($response);
+    $crumbs = $this->buildApplicationCrumbs();
+    if (!$this->isSelf()) {
+      $crumbs->addTextCrumb(
+        $this->getUser()->getUsername(),
+        '/p/'.$this->getUser()->getUsername().'/');
+    }
+    $crumbs->addTextCrumb($panel->getPanelName());
+    $nav->appendChild(
+      array(
+        $crumbs,
+        $response,
+      ));
+
     return $this->buildApplicationPage(
       $nav,
       array(
@@ -54,6 +102,13 @@
       if (!$panel->isEnabled()) {
         continue;
       }
+
+      if (!$this->isSelf()) {
+        if (!$panel->isEditableByAdministrators()) {
+          continue;
+        }
+      }
+
       if (!empty($result[$key])) {
         throw new Exception(pht(
           "Two settings panels share the same panel key ('%s'): %s, %s.",
@@ -61,17 +116,29 @@
           get_class($panel),
           get_class($result[$key])));
       }
+
       $result[$key] = $panel;
     }
 
     $result = msort($result, 'getPanelSortKey');
 
+    if (!$result) {
+      throw new Exception(pht('No settings panels are available.'));
+    }
+
     return $result;
   }
 
   private function renderSideNav(array $panels) {
     $nav = new AphrontSideNavFilterView();
-    $nav->setBaseURI(new PhutilURI($this->getApplicationURI('/panel/')));
+
+    if ($this->isSelf()) {
+      $base_uri = 'panel/';
+    } else {
+      $base_uri = $this->getUser()->getID().'/panel/';
+    }
+
+    $nav->setBaseURI(new PhutilURI($this->getApplicationURI($base_uri)));
 
     $group = null;
     foreach ($panels as $panel) {
diff --git a/src/applications/settings/panel/PhabricatorSettingsPanel.php b/src/applications/settings/panel/PhabricatorSettingsPanel.php
--- a/src/applications/settings/panel/PhabricatorSettingsPanel.php
+++ b/src/applications/settings/panel/PhabricatorSettingsPanel.php
@@ -17,6 +17,27 @@
  */
 abstract class PhabricatorSettingsPanel {
 
+  private $user;
+  private $viewer;
+
+  public function setUser(PhabricatorUser $user) {
+    $this->user = $user;
+    return $this;
+  }
+
+  public function getUser() {
+    return $this->user;
+  }
+
+  public function setViewer(PhabricatorUser $viewer) {
+    $this->viewer = $viewer;
+    return $this;
+  }
+
+  public function getViewer() {
+    return $this->viewer;
+  }
+
 
 /* -(  Panel Configuration  )------------------------------------------------ */
 
@@ -86,6 +107,18 @@
   }
 
 
+  /**
+   * Return true if this panel is available to administrators while editing
+   * system agent accounts.
+   *
+   * @return bool True to enable edit by administrators.
+   * @task config
+   */
+  public function isEditableByAdministrators() {
+    return false;
+  }
+
+
 /* -(  Panel Implementation  )----------------------------------------------- */
 
 
@@ -117,7 +150,15 @@
   final public function getPanelURI($path = '') {
     $key = $this->getPanelKey();
     $key = phutil_escape_uri($key);
-    return '/settings/panel/'.$key.'/'.ltrim($path, '/');
+
+    $path = ltrim($path, '/');
+
+    if ($this->getUser()->getPHID() != $this->getViewer()->getPHID()) {
+      $user_id = $this->getUser()->getID();
+      return "/settings/{$user_id}/panel/{$key}/{$path}";
+    } else {
+      return "/settings/panel/{$key}/{$path}";
+    }
   }
 
 
diff --git a/src/applications/settings/panel/PhabricatorSettingsPanelConduit.php b/src/applications/settings/panel/PhabricatorSettingsPanelConduit.php
--- a/src/applications/settings/panel/PhabricatorSettingsPanelConduit.php
+++ b/src/applications/settings/panel/PhabricatorSettingsPanelConduit.php
@@ -3,12 +3,16 @@
 final class PhabricatorSettingsPanelConduit
   extends PhabricatorSettingsPanel {
 
+  public function isEditableByAdministrators() {
+    return true;
+  }
+
   public function getPanelKey() {
     return 'conduit';
   }
 
   public function getPanelName() {
-    return pht('Conduit');
+    return pht('Conduit Certificate');
   }
 
   public function getPanelGroup() {
@@ -16,12 +20,13 @@
   }
 
   public function processRequest(AphrontRequest $request) {
-    $user = $request->getUser();
+    $user = $this->getUser();
+    $viewer = $request->getUser();
 
     if ($request->isFormPost()) {
       if (!$request->isDialogFormPost()) {
         $dialog = new AphrontDialogView();
-        $dialog->setUser($user);
+        $dialog->setUser($viewer);
         $dialog->setTitle(pht('Really regenerate session?'));
         $dialog->setSubmitURI($this->getPanelURI());
         $dialog->addSubmitButton(pht('Regenerate'));
@@ -69,7 +74,7 @@
 
     $cert_form = new AphrontFormView();
     $cert_form
-      ->setUser($user)
+      ->setUser($viewer)
       ->appendChild(phutil_tag(
         'p',
         array('class' => 'aphront-form-instructions'),
@@ -93,7 +98,7 @@
 
     $regen_form = new AphrontFormView();
     $regen_form
-      ->setUser($user)
+      ->setUser($viewer)
       ->setAction($this->getPanelURI())
       ->setWorkflow(true)
       ->appendChild(phutil_tag(
diff --git a/src/applications/settings/panel/PhabricatorSettingsPanelSSHKeys.php b/src/applications/settings/panel/PhabricatorSettingsPanelSSHKeys.php
--- a/src/applications/settings/panel/PhabricatorSettingsPanelSSHKeys.php
+++ b/src/applications/settings/panel/PhabricatorSettingsPanelSSHKeys.php
@@ -3,6 +3,10 @@
 final class PhabricatorSettingsPanelSSHKeys
   extends PhabricatorSettingsPanel {
 
+  public function isEditableByAdministrators() {
+    return true;
+  }
+
   public function getPanelKey() {
     return 'ssh';
   }
@@ -20,8 +24,8 @@
   }
 
   public function processRequest(AphrontRequest $request) {
-
-    $user = $request->getUser();
+    $viewer = $request->getUser();
+    $user = $this->getUser();
 
     $generate = $request->getStr('generate');
     if ($generate) {
@@ -37,7 +41,7 @@
     $id = nonempty($edit, $delete);
 
     if ($id && is_numeric($id)) {
-      // NOTE: Prevent editing/deleting of keys you don't own.
+      // NOTE: This prevents editing/deleting of keys not owned by the user.
       $key = id(new PhabricatorUserSSHKey())->loadOneWhere(
         'userPHID = %s AND id = %d',
         $user->getPHID(),
@@ -142,7 +146,7 @@
     }
 
     $form = id(new AphrontFormView())
-      ->setUser($user)
+      ->setUser($viewer)
       ->addHiddenInput('edit', $is_new ? 'true' : $key->getID())
       ->appendChild(
         id(new AphrontFormTextControl())
@@ -170,8 +174,8 @@
   }
 
   private function renderKeyListView(AphrontRequest $request) {
-
-    $user = $request->getUser();
+    $user = $this->getUser();
+    $viewer = $request->getUser();
 
     $keys = id(new PhabricatorUserSSHKey())->loadAllWhere(
       'userPHID = %s',
@@ -188,8 +192,8 @@
           $key->getName()),
         $key->getKeyComment(),
         $key->getKeyType(),
-        phabricator_date($key->getDateCreated(), $user),
-        phabricator_time($key->getDateCreated(), $user),
+        phabricator_date($key->getDateCreated(), $viewer),
+        phabricator_time($key->getDateCreated(), $viewer),
         javelin_tag(
           'a',
           array(
@@ -266,7 +270,8 @@
     AphrontRequest $request,
     PhabricatorUserSSHKey $key) {
 
-    $user = $request->getUser();
+    $viewer = $request->getUser();
+    $user = $this->getUser();
 
     $name = phutil_tag('strong', array(), $key->getName());
 
@@ -277,7 +282,7 @@
     }
 
     $dialog = id(new AphrontDialogView())
-      ->setUser($user)
+      ->setUser($viewer)
       ->addHiddenInput('delete', $key->getID())
       ->setTitle(pht('Really delete SSH Public Key?'))
       ->appendChild(phutil_tag('p', array(), pht(
@@ -291,10 +296,12 @@
       ->setDialog($dialog);
   }
 
-  private function processGenerate(
-    AphrontRequest $request) {
+  private function processGenerate(AphrontRequest $request) {
+    $user = $this->getUser();
     $viewer = $request->getUser();
 
+    $is_self = ($user->getPHID() == $viewer->getPHID());
+
     if ($request->isFormPost()) {
       $keys = PhabricatorSSHKeyGenerator::generateKeypair();
       list($public_key, $private_key) = $keys;
@@ -308,7 +315,7 @@
         ));
 
       $key = id(new PhabricatorUserSSHKey())
-        ->setUserPHID($viewer->getPHID())
+        ->setUserPHID($user->getPHID())
         ->setName('id_rsa_phabricator')
         ->setKeyType('rsa')
         ->setKeyBody($public_key)
@@ -320,6 +327,17 @@
       // disabling workflow on cancel so the page reloads, showing the new
       // key.
 
+      if ($is_self) {
+        $what_happened = pht(
+          'The public key has been associated with your Phabricator '.
+          'account. Use the button below to download the private key.');
+      } else {
+        $what_happened = pht(
+          'The public key has been associated with the %s account. '.
+          'Use the button below to download the private key.',
+          phutil_tag('strong', array(), $user->getUsername()));
+      }
+
       $dialog = id(new AphrontDialogView())
         ->setTitle(pht('Download Private Key'))
         ->setUser($viewer)
@@ -329,10 +347,7 @@
         ->appendParagraph(
           pht(
             'Successfully generated a new keypair.'))
-        ->appendParagraph(
-          pht(
-            'The public key has been associated with your Phabricator '.
-            'account. Use the button below to download the private key.'))
+        ->appendParagraph($what_happened)
         ->appendParagraph(
           pht(
             'After you download the private key, it will be destroyed. '.
@@ -350,13 +365,22 @@
 
     try {
       PhabricatorSSHKeyGenerator::assertCanGenerateKeypair();
+
+      if ($is_self) {
+        $explain = pht(
+          'This will generate an SSH keypair, associate the public key '.
+          'with your account, and let you download the private key.');
+      } else {
+        $explain = pht(
+          'This will generate an SSH keypair, associate the public key with '.
+          'the %s account, and let you download the private key.',
+          phutil_tag('strong', array(), $user->getUsername()));
+      }
+
       $dialog
         ->addHiddenInput('generate', true)
         ->setTitle(pht('Generate New Keypair'))
-        ->appendParagraph(
-          pht(
-            "This will generate an SSH keypair, associate the public key ".
-            "with your account, and let you download the private key."))
+        ->appendParagraph($explain)
         ->appendParagraph(
           pht(
             "Phabricator will not retain a copy of the private key."))