Attention!
I made new plugin which doing the same and also changing buttons for common objects: Person, CUA and SubScene to spawn them just by clicking. Check this one:
hub.virtamate.com
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Quality of life plugin turning On "Select Atom On Add" checkbox in "Add Atom Menu" once when loads.
Just add it as session plugin and forget.
Super simple plugin just activating this annoying checkbox that sould be default.
I made new plugin which doing the same and also changing buttons for common objects: Person, CUA and SubScene to spawn them just by clicking. Check this one:

Add Atom On Button Click - Plugins + Scripts -
Quality of life plugin to use buttons as it should be by default (Because we don't need open menu with one item and confirm spawning selected atom). This plugin modifies 3 standard buttons for adding common atoms to add them without menu and with...

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Quality of life plugin turning On "Select Atom On Add" checkbox in "Add Atom Menu" once when loads.
Just add it as session plugin and forget.
Super simple plugin just activating this annoying checkbox that sould be default.