if you have it in bypass the most upward position of the dispenser switch aft/forward will drop 2 of there respected CM's the middle position is programed witch you do with one of your DDIs on the EW page (programs 1-5 prog 5 is always selected as forward and you can have 1, 2, 3 or 4 set as aft) and bottom is off
Redkite does a really good video on this like all his others (
) explaining how the countermeasures work in the hornet