Label for line keys

[engine411]

On my T46G, I have 5 line keys set, but only one shows a label, which is set on the Account tab. This label shows only on the first button. We are moving from a traditional key phone system, which has distinct buttons for each call path or line. Line 1, Line 2, Line 3, etc.

Is labeling like this possible for the line keys? In other words, if I have the system configured to have 5 external calls simultaneously, can I label 5 line keys as Line 1, Line 2, etc?

If not, it will just be a training issue for our users, but I wonder if it's possible.