[Factorio 2.0.23, CC 2.0.11]

In the map editor, I can place compact processors just fine, but left-click (and control click) does nothing. It works fine in a "regular" game mode.

this boils down to lines 242-244 in editor.lua where the mod does:

if not allow_controller_types[player.controller_type] then
return
end

which returns false on the map editor.

I sent you a PR (https://github.com/Telkine2018/compaktcircuit/pull/40) that fixes this (and the persistent "Inputa" typo in the english locale :-) )

Your PR has been merged

thanks!