Master Pre-render track button

Would it be possible to add a master button for pre-rendering tracks? 

Quite often I will pre-render tracks when reviewing edits to reduce lag. However it can be fiddly when I want to turn off pre-rendering before tweaking an edit, and then turning each track on again one-by-one when I want to continue listening. 

A master switch could toggle the pre-render state for all selected tracks - similar to using the mute or solo buttons on bussed tracks. 

Many thanks, 

Will