Blender Add-On: Select Objects in Same Collections
Description:
Selects all objects—including hidden ones—that belong to the same collections as your currently selected objects. Useful for batch operations on grouped elements, even if they’re not visible.
Button Placement:
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Found in the Object Context Menu (right-click in 3D Viewport) as “Same Collections Objects”
Working Principle:
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Scans selected objects to gather their associated collections.
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Iterates through those collections to select all member objects, regardless of visibility.