Another question about the Team plan

Can I choose different subscription types e.g. manual or monthly in a “per-seat” manner? Or do all seats get billed either monthly or annually?

Also: Is there any option to “split the bill”? E.g. to get invoices per-seat?

Thank you.

Also another question; If I’m doing annual billing, and. I add a seat, and then a few months later the Team changes, am I able to assign the seat to someone else?