Editor: v1.47n
Since DOS/Lemmix support has been removed, NeoCustLemmix is no longer a thing, and people can now make level packs of more than ten levels using the Flexi Toolkit, should this function be removed?
I'm not sure if it should be removed altogether, but perhaps it should be set so you can load from but not save to DAT files.
EDIT: Done this for the next update. You can still open DAT packs and load the levels from them, but saving to them is no longer supported (since there's no need for it).