Add ability to assign as many lines in Presence Appearance as needed to be Key Type = Primary Line on Polycom VVX411 phones.

Add ability to assign as many lines in Presence Appearance as needed to be Key Type = Primary Line on Polycom VVX411 phones to optimize phones for Sales Team. I have 12 lines on desktop phone. I'm stuck with either all 12 being primary line or if I customize in Admin Portal > User > Presence > Appearance, I'm limited to two. I desire 6 primary lines and 6 to show other extensions. I'm forced to waste the phone's ability because I can't pick the primary line.