Yes, you can assign a multi-user product-related rights. Under "Settings > Multi-User Access", select the relevant email address and click on the pen under "Actions". Under "Grant this user access to:", you can select the functions to which the user should receive access.
You must create the multi-user before you can assign them product-related rights. For instructions on how to create a multi-user, click here.
You can also assign particular bookings to a multi-user. To find out the best way to do that, click here.