You can assign users to the Shift subscription from the Shift plan agenda

Giriton has long offered the ability to create calendars from attendance data. For example, you could create a Vacation or Home Office calendar that displays user data from a selected department and exports it to your Google Calendar or Outlook.

Now, you can also create such a calendar from an attendance activity of the Note type. For instance, you can create an attendance activity called "Work Location" using the Text Note type, where users record where they are working from that day (e.g., "Office 1" or "Home Office"). You can now create a shared "Work Location" calendar that will sync where users from your department are working directly to your Google Calendar or Outlook.