Can you enable / disable this at will? As in your game plays normally but during certain times it turns on the 3-D
That would truly be useful. Also, to add on; will future updates include things like allowing developers to calculate for fall damage?
If you keep track of the player's z position, you could probably implement fall damage with eventing.
You can disable it per map, or with a plugin command. I recommend per map, as maps designed for mv3d typically don't look good in 2D.
How do I do this?
