Expansion Module - BLF URI Subscription

Hi,

I have a VVX 411 with an expansion module installed. I am connecting to a BroadWorks system and using "attednant.URI" to setup the BLF. The subscription is working fine but the list of monitored users starts on the line keys of the device. I want the BLFs to only appear on the Expansion Module and have the device only show the active line.

I have tried to setup the BLF manually as per the FAQ:

https://community.polycom.com/t5/VoIP-SIP-Phones/FAQ-Can-I-change-re-assign-the-appearance-of-Line-BLF-Speed-Dial/td-p/8578

But when I set the "lineKey.reassignment.enabled="1"" The Attendant.URI subscripton is ignored. 

Phone Info:

Model: VVX 411

UC Software Version: 5.9.3.3446

Updater Version: 5.9.7.19340

I also found a related post but I do not beleive the issue was resolved.

 https://community.polycom.com/t5/VoIP-SIP-Phones/Polycom-VVX-400-Force-BLF-only-on-Side-Cards/td-p/83383

Thank you

Sean