wintitle = is1 (Ctrl+Alt+1) Implicationz-Frostmourne - Always Sunny ; use AHK to get the exact name of the window it will be broadcasting to (then use ISB to send the keypresses).
SetTitleMatchMode, 2
#SingleInstance Force

IfWinExist %wintitle%
{
   loop
   {
        Controlsend,,{F2}, %wintitle% ; <-- this is the proper format, chane F2 to whatever DPS key you want.
        RandomSleep(686,964) ; change the sleep variables to whatever you want- its in MS.
   }
}
Return

; Always keep a command to pause AHK
F5::Pause


; Generally a good idea to keep a panic button
F8::ExitApp


RandomSleep(min,max)
{
Random, random, %min%, %max%
Sleep %random%
}