Restricting a certain user to a certain room

[googlemad]

This may seem like a really simple question but here goes:

We use a combination of Novell 6.5 and Zen 7. We have a context 'Workstations' with a sub context 'SF02'. In this sub context we have a user called 'Edexcel'. Also in this sub context are a number of objects that correspond to the workstations in this room (SF02PC01 etc).

Basically I want to restrict the 'Edexcel' account so that it can only be used by the workstations in this room (Therefore in exact terms the workstation objects in this sub context).

Any ideas?

[riedquat]

Add the MAC addresses of the workstations to the Login Restrictions page for that user account.

[googlemad]

Never mind - It is under 'Restrictions - Address Restrictions'

(I was hunting down a page where you could just select workstation objects!)