A minor suggestion. I've been making a lot of levels, and I hate that when I test really large ones, I realize I forgot to set the time to infinite because it turns out I have five minutes which is not enough to solve a huge level.
As many levels these days use infinite time limits, and time limits are seen as for preventing backroutes or if they're meant for a challenge, infinite time should be enabled by default when one first opens a new level.
