thanks for asking.

The repeat rate can only be adjusted for operation modes that include 
auto repeats or repeated key presses.

The operation modes determine what key events Remote Buddy should 
create for the actual button press, release and the time inbetween. 
Single key press always means a "key press followed by an immediate 
key release", whereas other modes will only send key press and release 
events at the time the button on your remote is also pressed and 
released.

Hope that helps.

Best regards, 
Felix