How to spawn objects in editor?

I can duplicate an existing object and change it to something else but how to spawn a new one???
I click on "Create Object" > "Other Classes", choose "TSStatic", click "Create" and it does nothing.

 

You don't create static objects, but drag and drop (or double click) them from the asset browser. Go to Window > Asset Browser, then click on Saved Filter > All models. It shows every asset you have in the map's inventory.

 

Thank you very much!

 

When added through the editor, it does not explode