
This command will send all nonactive windows the /assist <active window> command as long as character names are set in the interface. Names are automatically set in the interface if you renamed window as character name.
$KEY::Assist()
Examples with different keys:
Using Function Key
$F1::Assist()
Using Letters
$a::Assist()
Using Numbers
$1::Assist()
Using Alt 1
$!1::Assist()
Using Ctrl 1
$^1::Assist()
Using Shift 1
$+1::Assist()