Location changes

We have two locations – staff vary which location they work from each day/week. I therefore need to be able to assign them to a different location on an irregular schedule. Is there a way to do this? For example, John works at location X on Mon, and location Y Tue-Fri; the next week he works at location Y Mon-Wed, and location X Thur-Fri.

I can see how I can assign them to a location for a set day but not vary it.

How do I also allow virtual appointments regardless of which location they’re in?