1) You can't if you've exhausted your WIP limit 2) Some people (like myself) don't like uploading maps until there has been considerable progress, since not everything that I start mapping I'll end up finishing, due to loss of interest, mapping difficulty, etc.
this is a bit similar my request. add quick save/load system on mapping. it will help for accident. i don't know the best word to explain my request. maybe people who play eroge can understand this soon. if we tried mapping and testing some jump/rhythm patterns on the same part, it is hard to back oldest or unique or best formation. so... 1st quick save for 1st pattern. 2nd quick save for 2nd pattern. 3rd...4th...5th....... if i like 3rd pattern, I can "quick load" for 3rd pattern whenever, then back that formation immediately. mapping is Kouryaku. quick save is not real save, just handy backup.
This not being added to the game is so frustrating. I would be super grateful if it were included in the game. Sometime I don't even feel like fixing parts of my map, because the game doesn't support this feature. Retain the undo history after a save. It would save me so much time.
@RagingBull That will create a duplicate folder in your song folder. There is no easy way to deleted a duplicated folder and the extra folder when cause issues when you submit. Also if you happen to open a backup .osz, it will overwrite any unsaved files in your recent folder. Deal with .osz backups with care.
It shouldn't be very difficult to add this. The game just needs to keep the undo changes loaded in memory even after entering test mode. The only cases in which the undo changes should get cleared is leaving the active beatmap (by changing difficulty) or leaving to the edit menu. Saving and testplaying is an integral part of editing a beatmap and it is absurd to remove the ability to undo changes after a testplay. Changes made to a map should be testplayed.
If I had stars, I would shoot them all to this request.