Per Paul:
If the Input Select menu is on the screen, you make an
Input Selection, then hit a Shortcut key (Shortcut 1 or Shortcut 2),
does it remember that ? I suppose the best you could hope for,
is the Shortcut key causes the Input Selection menu to
pop up. I get the impression the Shortcut key, is a shortcut
to a certain menu level, rather than an actual selection.\

No such luck. The "1" and "2" buttons seems to invoke programmable
"UserMode 1" and "UserMode2", but when I go to try to define the
UserModes, (Shortcut | Shortcut 1, for instance) Shortcut 1 points to
User Mode 1.... but I can't figure out how to define "User Mode 1")

Fooling around, I managed to select "Display Port" form the Input
menu... and then seemed to have semi-bricked the monitor: pressing
"Menu" no longer brings up a menu.... disconnecting/reconnecting power
doesn't help.... it just kept throwing "Asus DisplayPort NO SIGNAL"
after the Asus splash screen.



The manual doesn't make that clear. The manual
doesn't make anything very clear.

Went back for a little more RTFM and discovered the "Input Select"
button (duhhhhhh...!) which basically does what I wanted to do in the
first place - albeit with a few more presses to cycle through the other
input sources... but it's plenty good enough.
--
Pete Cresswell