User: Assigned POS Only
The user will have access to her assigned points of sale.
Assigned points of sale
['|',('assigned_user_ids','in',user.id),('assigned_user_ids','=',False)]
Assigned POS sessions
['|',('config_id.assigned_user_ids','in',user.id),('config_id.assigned_user_ids','=',False)]
Assigned POS orders
['|',('session_id.config_id.assigned_user_ids','in',user.id),('session_id.config_id.assigned_user_ids','=',False)]
All points of sale
[(1,'=',1)]
All POS sessions
[(1,'=',1)]
All POS orders
[(1,'=',1)]