Additional VOX control button

This may have been discussed before but my searches did not turn up anything.
Is it possible to add another VOX button that's visible when the Radio Panel is hidden, possibly next to the main audio control. This allows selection of VOX control when the PHNE panel or Radio Panel is not visible. After the settings are made on the PHNE panel, the only reason to have it showing is for access to the VOX button, on screens with limited display I would like to hide that panel, or when operating with the Radio Panel hidden.