We would like to set up a group of users with access to a group of suppliers and their associated orders etc. (for our overseas buying team).  I think we can do this with using access rules similar to this thread below which discusses restricting sales people seeing only their own customers.

https://www.odoo.com/forum/help-1/question/how-to-restrict-visibility-of-customers-contacts-for-sales-persons-to-only-their-own-793

Can this be done setting up a new Group similar to the "Sales / User: Own Leads Only" but using the "Default Sales Team" on the user and Sales Team on the supplier instead of user as in ['|',('user_id','=',user.id),('user_id','=',False)] creating a many to many relationship?