Whelen 21-button multi-function?

GPSRider

New Member
Feb 4, 2020
2
VA, USA
On the 21-button controller, can a switch have multiple functions by number of presses? What I want to do is control all the traffic advisor functions with one button, i.e., one press is TA LFT, two presses is TA SPLIT, three presses is TA RT, etc.
 

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