"undo" and "redo" buttons?

[mikibonacci]

Could be useful/nice to have, together with the reset button, also "undo" and "redo" buttons, maybe with short memory (two, three moves). I am thinking on this because maybe it is better than having only buttons to reset the whole set of parameters (this is not wanted all the time) and/or single parameters (a lot of buttons)

I guess this can be "easily" implemented using the MVC model.
Pinning @edan-bainglass to keep this in mind.
Maybe when the MVC is there, we can think on something in this direction.