restrict user access to booking activities plugin only

Hello everyone

I want to create a user that is only able to reach the Booking Activities panel. I created a user and added “Rights” to the Booking activities. Now when I log in with this user, I only see the Booking Activities tab but the calendar is not available. It would like me to create a new calendar although this is already available from the admin. Do I have to activate further rights here so that everything is displayed as with the admin? The goal is that employees only have access to booking activities and do not have other rights, so that they do not accidentally change anything.

The following rights are granted:
read_sln_booking
read
bookacti_read_templates
bookacti_manage_templates
bookacti_manage_forms
bookacti_manage_bookings
bookacti_manage_booking_passes
bookacti_manage_booking_pass_templates
bookacti_manage_booking_activities_settings
bookacti_manage_booking_activities
bookacti_edit_templates
bookacti_edit_price_categories
bookacti_edit_forms
bookacti_edit_bookings
bookacti_edit_booking_passes
bookacti_edit_booking_pass_templates
bookacti_edit_activities
bookacti_delete_templates
bookacti_delete_price_categories
bookacti_delete_forms
bookacti_delete_bookings
bookacti_delete_booking_passes
bookacti_delete_booking_pass_templates
bookacti_delete_activities
bookacti_create_templates
bookacti_create_price_categories
bookacti_create_forms
bookacti_create_booking_passes
bookacti_create_booking_pass_templates
bookacti_create_activities