Current questions and answers regarding the map editor.

You are right about the editor not being expanded. It's likely that this is what's causing the issue. I'll keep looking, but I can't provide my own. I have version 3.0 of the game, which is a licensed copy.

I updated to version 3.1, but it still doesn't work. I don't know what else to do. Do you know how to create mods?

In the profile folder, in the editor file, change 1 to 0 in the line setvar map_editor_mode. And voila, the editor is expanded.

It seems you don't have the expanded editor, but this shouldn't affect it. You need to enter soldat1 and specifically in the name field. Then save. For reliability, place a skeleton or zombie. Test it on an empty map (where there are no other scripts).