It would be great for Avaya to support the "Group ID" field for Avaya Workplace installations. This would allow admins to segment out groups of users and push down settings based on those groups (similar to how settings can be segmented out for IP hardphones).
I see a situation where the Group ID would be sent to the station via PPM, and the client would then pull down a clean 46xxsettings.txt files and parse it based on that group.