I just made my first map (in joust) and turns out its built diagonally.
I can't seem to find any diagonal spawns. Using the normal ones unbalances the map as both players spawn on the same one and it will be closer to one pole than the other.

Is there any way to fix this? Custom blocks or something im missing?
Second question,
Is there any way to raise/lower poles and spawns. I have definitely played on maps where this has been done but the blocks don't seem to move.
Third,
Is there a way to force railguns only?
I tried googling but doesn't turn up much in terms of editing specifics.
Hopefully someone more experienced than I can help me.
Cheers!