You're talking about leasing a license?
Various (machine) hardware properties are included in the lease assignment. For example, there is a maximum of two MAC-addresses a license can be leased to.
If you use this Named CAL to open documents in the AccessPoint, there shouldn't be any limitation aside from the usual "Session disconnected" effect. A CAL can only be usede in one session at a time. You can open as many as you want on different machines, but only one will be active. The others will be disconnected.