I need some tool to quickly place or brush paint detail models on a level.
Godot had the Asset Dropper plugin, is there some equivalent for 3D ?
I made one that saves changes as node packed scene.
Unfortunately , objects added at run time are not visible in the editor tree node, so saving them create an empty packed scene. A plugin seems the only way to do it properly.
Look into the tool keyword. A plugin is more useful if you intend to package a tool so as to share it, be that within a studio(i.e. production specific tool) or with the community at large. A plugin will likely still need the tool keyword however.