atcomsystems.ca/forum Forums Other TDM Phone Systems Nitsuko-Tie Telephones & Systems How can you get the button to light up when line 1 is in use?

I lost all the programming and I have piece together how to do almost everything except get line 1 to light up when in use on another phone.

I believe this is by default assigned to the top left key on the phone however I assigned as an extension instead

I can assign a key to access the trunk however not light up when others are using line 1.

Any ideas on how this can be done?

Thanks.