I have got from my team member a map and i have to put some models in it and have to declare it (behaviour/action) But there is no action in there and the map is not in the main gamestudio folder. Also i can´t find models. What can i do or where can i put the map to get some models and actions (the gamestudio templates)

1: Make your own Workfolder.
2: Copy all your Levels, Scripts and Models in this Folder
3: Open WED --> File --> Map Properties under "Script" coose your Mainscript.

Now you should see the Models and Actions

Yes, you only have to choose a main script.