Amazon Fire & Numeric Buttons

[jseymour]

Hi All,

I've got a Home Theater Master MX-500 [set to a Replay TV code set] controlling a Gen. 2 Fire TV via a Flirc.

On another forum made a passing reference to using number buttons on a remote with either an Amazon Fire TV or Android TV streaming device.  A request for details went unanswered.  So that's the question: Can it be done and, if so, how to go about it?

Thanks!