Allow caregivers to claim an open shift

We work from home doing housing research, and this is a fast-moving service.

I would like caregivers to be able to claim an open shift without my approval. Open shifts are meant to encourage workflow, but waiting for approval slows everything down and stops caregivers from being paid for their time.

I have been told that adhoc is an option for this; however, adhoc scheduling is messy because I have to approve the shift without being able to look at the notes. This requires me fake the approval, remember which shifts have fake approval, unapprove them, open and read notes, re-approve. It's a challenge.