sorry i forgot to respond to your main russian post

what exactly do you mean by spawner?

im currently aware of a limitation with spawning large dupes/entities with toolguns
im unsure if what your talking about coincides with this limitation or not

I meant NPC spawner, for example, I use NPC Groups in the mod there is a spawner and you can’t do it with anti-undo or NPC tool

i looked at the addon you mentioned and see what you mean, the spawner entity doesnt really have anything you can see/click on

im working on a workaround for this case i'll update this thread later on through the week on progress if there is any

ive just updated the addon to include a console command that displays a gui which allows you to use this for the spawner entities

hopefully this fixes your issue