mapping problem in FX

[DIGITaL MoNKEY]

I am trying to map the FX unit on, w/ dry/wet adjust value=1.000 but when I press the button, it sends dry wet to 0 the first press then I have to press it again to make it go back to 1.000. Am I missing a modifier or something?

[Stewe]

Missing 'FX Store Preset'.

[DIGITaL MoNKEY]

That's what I thought, thanks man.