Additional QoL level editor features

[ThePizzaEater1000]

This is an excuse to make even worse rollers than the ones on PR3

Block Fill sounds like a terrible idea. It would likely crash your game because LE is trying to fill every single space a block can go.

Quick few things: It is impossible to make worse rollers on PR2 than on PR3 because of the level size limit being far smaller, and the lack of custom blocks. Also, with block fill, if you crash yourself by selecting twelve million blocks to fill, I feel that is your own fault for making that decision, since it cant fill every single space a block can go unless you select the entire level canvas.