Yes. You choose which locations each user can see, and which role they have on each location.

1. Click More → User management.
2. Click ⋮ on the user and choose Edit location access.
3. Under Access setting, choose Customize access instead of Access to all SDSs (only the owner can change this).
4. In the location tree, choose No Access on the locations the user should not see, and a role such as Staff or Admin on the others. Click Save.

The locations under a location get the same role. In the picture, Laboratory, Warehouse and Workshop get Staff from Main Plant.

A user with No Access on a location cannot see it or its SDSs. Read more about the roles: Can I assign different roles for people in a location?

QR code posters work the same way: click QR Access (Employee Access) in the left menu, click ⋮ on the QR code and choose Edit location access.