The best I think you can do is to add this to some function keys instead of using the up and down arrows. Add this to your remote scripts:

Code:
alias F11 sendkeys {UP}{HOME}
alias F12 sendkeys {DOWN}{HOME}

alias sendkeys var %a = $ticks | .comopen %a WScript.Shell | if !$comerr { .comclose %a $com(%a,SendKeys,3,bstr,$1-) }