Programming A9 head for VIP

[toyradios]

Hello - I did a search for this question but didn't find the answer.

I have a Spectra with an A9 head that I would like to assign one of the spare buttons for VIP 1 and 2.

I found the setting in the RSS for the VIP Out, but not sure how to assign a button for the VIP function.

Any help would be greatly appreciated.

Thanks in advance

Bill

[Will]

The buttons may be asigned in the F2 Control head screen.