T2x Line Keys BLF Label ?

[jfields]

On the T22 / T26 phones, I am using the 3 green line-keys as BLF keys for 3 parking slots. Push any of those 3 keys, and the same key lights up on everyone's phone to show there is a parked call there. That works perfectly!

So, I want to label those 3 blf keys, something to the effect of "Park1" "Park2" "Park3", or whatever.

When I choose BLF as the key type, the label field is grayed out so I can't type anything in it. Is there a way to label those 3 keys?

Thank you.