Festo Valve

Does anyone know how to manually activate the Festo valve? The specs say it has a manual override, and Festo sells a manual override attachment for it, but from the info on their website, I can’t tell how it works.

We don’t have a clue either, our programmer just sets up some button real quick if we need it, now the controls are almost final so no one really worries about it

There should be a button next to the two cylinder ports side of the valve, between the DIN connector (electrical) and the valve body.