On Pickup Points > edit pickup point, the Corporate/Parent Membership Restriction field (shown only when account members are enabled) lets you select one or more customers. Each selected customer is assigned to this pickup point. At checkout, a customer who is assigned to at least one pickup point sees only the pickup points they are assigned to; customers with no assignments see all active pickup points as usual.

Use it for corporate or group programmes where a manager's or members' orders must go to a specific office or hub. Assign each member (and the manager, if they order too) on the relevant pickup point.