When enabling both the "ALL" and "At least ONE" list of Conditions on the When tab, both lists can be logically combined using either AND or OR:
Example 1:
[Client has 2 GB of memory] and [Client has 2 GB of free disk space]
AND
[Client is in IP segment A] or [Client is in IP segment B]
Example 2:
[Client is laptop] and [Client is in IP segment C]
OR
[Client is Desktop]