You can set which staffer can offer a personal lessons/appointments and in which room.
1. Go to Settings>Classes, Courses and Events
2. Click on a class to open its settings
3. Go to the Resources tab
4. In the Types of resource section, tick the Enabled  checkbox to set which types of resources can provide the personal lesson.
5. In the Resources section, from the Resources  drop-down menu, select if:
- the personal lesson is available with all resources. It can be provided by ANY member of your staff, in ANY room
- the personal lesson is only available with the selected resources and tick  the resources that can provide the personal lesson
- the personal lesson is available with all BUT the selected resources and tick  the resources that can not provide the personal lesson