DH reset button INOP?

[Rodeo]

On the pedestal, just below the knob use to set the decision height, there's what appears to be a button, labeled RST. Based on experience with previous Boeing addons for X-Plane, I suspect pushing the button would reset the decision height to 0 (or maybe in this plane, -20). But the button doesn't appear to have been implemented. Is here a specific reason for it being omitted?

Edited May 12, 2016 by Rodeo

[Tom Stian]

DIGITAL RADIO ALTITUDE AND DECISION HEIGHT

Radio altitude appears in the lower right corner of the EADIs when RA is 2500 feet or less. When an altitude is selected on the EADI section of the EFIS control panel, DH and selected altitude appear above the RA indication. Descents below 1,000 feet AGL cause a round RA indicator to appear and a magenta pointer replaces the DH readout. When descending through selected DH, the indicator and DH pointer change to flashing yellow, then steady yellow as descent continues. The DH alert is reset when the DH reset switch on the EFIS control panel is pressed, RA increases to DH + 75 feet or zero RA at touchdown. Electrical power interruption causes DH default to 200 feet.

 

source: http://air.felisnox.com/view.php?name=737.pdf

 

[Rodeo]

Heh, well than explains it, thanks!