Make it possible to create a keyboard shortcut for "Separate Dimensions" on selected objects

I think we may be using Ae for different purposes 🙂 I come from a 3d character animation background and have no idea why I would ever NOT want this capability- haha!. I'm comfortable with operating with XYZ axis, so for me, it would be useful. I switch position over to separate dimensions every single time I animate. I don't want this to be on by default. Just the ability to make a hotkey for people like me who use this all the time. Thx!

Separating dimensions is only an efficient workflow for a few workflows. When you separate dimensions, you lose the ability to precisely control the motion path in the comp panel using bezier handles and the pen tool + Alt/Option. I separate dimensions in only about one out of every two-hundred comps I create, and those comps are usually data-driven graphs and charts. 

The other problem with separating dimensions happens when you want to change the speed on either axis. Change X speed and leave Y speed alone, and the motion path will change.