Hello SimoBesha,
Thank you for your question, and I apologize for the delay in replying.
Unfortunately there is no direct way to do this in the Scheduling Tool. Some users work around this by manually creating off-requests as needed, or by using Areas (more advanced, and is only effective in some situations.)
You can read a bit about Shift and Call Areas here:
https://www.medrez.net/help/call-shift-schedules/create-shifts-calls/#areas
I hope that helps.
Kind regards,
Olivier Forget
MedRez.net Developer