Quick way to disable volume calculations - a toggle, quick access toolbar or similar

[HVAC-Novice]

Is there a way create a quick access or toggle button to change the volume calculation on the fly without having to go into the settings? 

I usually have volume calculations enabled since a lot of my design depends on that. But on a larger project it takes some seconds to re-calculate large room volumes when changing a rooms separator or similar. I noticed disabling volume calculations helps quite a bit. I'd like to be able to quickly disable volume Cal cautions if I do things not requiring volume calculations. 

I didn't see a way to add this to the quick access toolbar. 

(I know, a decent computer would help.....)

[ToanDN]

You can create a keyboard shortcut to the dialog but you still need to change it yourself.

[HVAC-Novice]

Thanks. that may be the best crutch to do this.

In an ideal world it would be a toggle that changes color based on status.