Hey there. I was trying the new version (3.4) and I noticed an inconvenience, or maybe I just don't know how to use it right.
When adding new levels, the new one always build on top of the previous. This wouldn't be a problem if we could rearrange the order...
...What I mean is, after I built a large level, I figure out i need another one (much smaller) at a lower height, but unless i delete it, i cant go lower.

If only we could move (rearrange) the level tabs, or set absolute heights instead of relative to the previous level, then it would be perfect.