Add BLF label through OSS Endpoint Manager for SPA500DS

I have about a dozen Cisco SPA504g phones with the SPA500DS sidecar. BLF works like a champ but I have to set the label for the sidecar extensions manually. They are also overwritten on reboots.

Could this be done through FreePBX Template editor if a field was created to add ‘;nme=Person Name’?

Asterisk 11.6 with FreePBX 2.11 running on CentOS 6.5.