Aquamist 2D. How can one turn on the W/I by button?

[mx5]

On my 2D I would like to have the feature to turn on the spray when not under boost - to cool down the intake and the blower.

One idea is just to mount a button parallel to the terminals of the Aquamist 2D air pressure switch? Does the Aquamist switch close when it senses the boost it was set at?

Will this setup work? Has anyone tried making the 2D running all time (no boost triggered)?