Generated structures with script

[Wous Korvus]

I do my own events. I would like to spawn some structures with a script on my map (exactly under the cursor), such as hounds and a staff, a spider on a carpet, and others. Do you know how this can be done?
P.S I heard that for this you need to unlock the developer console. But how to do that?

Edited June 28, 2021 by Wous Korvus