My inclination here is to use the actionheaders instead which give us a smaller footprint visually, and access to the icon/buttons for related actions in the future.
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We can also potentially render these differently (e.g., fat headers in edit mode, thin headers in view mode) if that eases anything.
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My thinking is if we're going to have a dozen boxes in multiple columns, the lighter action header provides better value (smaller, less visual noise). I would at least start with it over ObjectBox. Maybe I just wrap it quick in a PHUIWidgetBox and it sets us up better in the future..