Taking action on multiple records at once

Certified Associate Developer
Hello! My issue is as follows:

The app serves the purpose of office desks' management, where desks can be booked by users for periods of time. For this case we have two recordTypes: "Desk" and "Booking", and a foreign key that connects them. The "Book this Desk" record action saves the "bookingNumber" to the Desk recordType, but the data for the booking itself is stored in the "Booking" recordType. One of the requirements is that a priviliged user shall be able to book multiple desks for a group of users. We figured that these priviliged users will create groups through the Create Group Smart Service and therefore the Booking will be assigned to a group. That should work fine for assigning multiple users to one Desk, but is there a way to take action on multiple recordsTypes? In this case, to assign one group of users to multiple "Booking" recordTypes, each of which will in turn be assigned to multiple desks (one "Booking" to one "Desk")? I would appreciate if you could share some insight on this.

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