Individual custom availability for team Meetings links for international teams

I was using the group calendar (round robin) and wanted to have it so each team member can submit their individual availabilty.

For instance, we want to have sign-ups to go through our service with prospective customers. Currently, you can only select a general availability and the calendar assigns based on which team member is free. But it would be great if team member 1 could submit that on Monday they are free 12-2, Tuesday 3-5, etc.

Also, there should be the option to have different availability each week.