How do you scroll around in the editor?
EDIT: i should tell you how to navigate the map (forgot) make sure that it has focus(click it) and then hold space and right mouse button, move the mouse and the screen should move with it.
How does one create a .wts file to point to a tileset
Go into the tileset editor - load a tileset and the close it - the map should now use the new tileset.
I just found a bug while seeing if this works, i'll fix it right now.