Let's say you're designing a level, and you want to alternate between the regular editor and Ved. It's very easy to "reload" a level in the standard VVVVVV editor, just press L, then enter, and bam, you've reloaded the level. But in Ved, you have to press L (or press the load button), then click on the level name. Not too bad, but if you play a lot of levels, then you might have to type the first character of the level name, then click the level. I would add a "Reload" button that reloads the level you're working on.