EPM Mislabelings for Grandstream GRP phones

See thread https://community.freepbx.org/t/epm-support-for-grandstream-devices/84754/3 :

the way you labeled the key assignments for the GRP series is incorrect.
GRP26xx phones have line keys (VMPKs - virtual multi purpose keys) which are to the left (and on the right as well on GRP2615) of the screen, they also have soft keys (which are below the screen - options like call history, redial, menu, etc.), and they have MPKs (multi purpose keys) which are the physical keys on the bottom right (the GRP2615 doesn’t have these).
See attachment.

 
Please rename accordingly to avoid huge confusion with Grandstream users.