3 things: One: (In the "Level" menu in the editor) How about changing the "New" button to be a submenu that contains "Level" and "Worldmap". Does anyone else think that this would be a good idea?
Two: Make the editor automatically put .stl, Or (Based on the system proposed above) .stwm, Depending on what type of file was created.
Three: Add a "Clone Sector" button that would be in the menu that comes u when right-clicking on a sector in the editor.
I do hope these get implemented!