You can edit the script yourself:
Go to Plus! > Preferences > General > Scripts > Delayed Signin > Edit
You will see:
code:
function OnEvent_Initialize(MessengerStart)
{
MsgPlus.AddTimer('delay',20000);
}
function OnEvent_Timer(timerId)
{
if (timerId == 'delay');
Messenger.Autosignin();
}
Now simply change the delay time (the underlined part in the above code) from 20000 to whatever you want. The number is in milliseconds, so:
1000 = 1 second
10000 = 10 seconds
60000 = 1 minute
etc
After you've changed it, press "Close" and you're done.