assign a key to open gsx menu

[fafoair]

Is possible to assign direct key of the keyboard or peripheral to open gsx menu?

[Atrius]

Open FSDT Installer, then click "Config". You may change the hotkey from there.
See attachments.

[Transair]

I'd like to go further than that.  I've assigned a button on a H/C Bravo to open GSX which is fine, but what I would like to do with a 2 screen set-up is have the same key first move the mouse across to the FS screen ((or ensure it stays if already there), then open GSX.  If the mouse is inactive I don't know which screen it's on, and it needs to be on the FS screen in order to get GSX to open.