Call Park 'key' on Polycom 650


I am attempting to place a Call Park key on the Polycom 650 using the Commercial EPM. However, based on documentation I could find, I came up with the following string, however I can’t get it to work.

Polycom firmware v
Asterisk 11 / FreePBX 4.211.64-7

I utilized the basefile editor within EPM, and created the following:

softkey 1.action 700$Trefer$$Cpause4$$Changup$
softkey 1.enable 1
softkey 1.label Park

Is there something else that I am missing. Maybe another file or value??

Any help would be greatly appreciated!