After hearing out a user having trouble testing a map in editor, I then realized how it can be a problem not being able to change the Auto Mode toggle during the test play from editor. If you put this into deeper perspective, a good percentage of players use the Z/X default key combinations to play the maps, but there's also some who use their own setup which in this case, the A/S combination. Because the A key is the default to switch to auto play in test mode, the mapper/player cannot properly test the maps as the idea with switching to other keys can make it feel awkward or uncomfortable to play. Having the option to change the Auto Play toggle while testing in editor can help fix this for those with this problem.