Creating multiple entity families that contain child rigid bodies doesn't have good affordances in Gaia. Same goes for copy-pasting them. This is because rigid bodies specifically do not utilize or respect mounting. However, it would still be nice to be able to edit their root entity as if they did. Hence, we should consider creating a special facet that marks the root entity as desiring this special handling in the editor.
Alternatively, just implement this special case behavior only when moving / pasting rigid bodied entities themselves. Then there'd be no need for a special facet afaik.
Creating multiple entity families that contain child rigid bodies doesn't have good affordances in Gaia. Same goes for copy-pasting them. This is because rigid bodies specifically do not utilize or respect mounting. However, it would still be nice to be able to edit their root entity as if they did. Hence, we should consider creating a special facet that marks the root entity as desiring this special handling in the editor.