DSS Key type VoiceMail Blink if there is a message

[tsukraw]

I havent figured out a way to accomplish this so throwing it out there in case someone else knows a way.

I have a need to program a front desk phone with 3 different mailboxes.
The initial thought was to program 3 separate extensions on the phone. have all 3 extensions subscript to MWI lights. This works but just glancing at the phone you cannot tell which mailbox has the message. It just shows one new message and the blinking notification light.

So the next thought was setting a DSS key to Voicemail. Selecting the Line for the key. In this configuration though the DSS key does not blink RED when there is a message. Does anyone know a way to get this function? it would be great if i could have it blink. That way i could have a DSS key for each Voicemail Account and the light would illuminate for that account when there is a VM.

Forgot i should mention this is a T46G phone, Firmware 28.73.0.45, 3CX V12.5GA