Controller state setting
I am in the process of doing this myself, having used the Morley Big Horsie wah for a while. Since going to the Axe Fx, I didn't like the tap-dance of "step on a switch, go to wah pedal, step on switch to turn off" I was doing with my Ultra. I have since found out it never had to be like that. Another case of "should have read the manual better" for me. I am reading more and more as time goes by...
Perhaps some of our folks can provide a better step by step on it, as I am still in the process of setting mine up. But the manual explains that you can set your pedal range of travel to operate as, essentially, an on-off sensor like in the Morley. So, lets say I set my controller so all the way off (heel down) is "off" in the Axe Fx. Then I can make the controller setting so 10 or 15% of travel changes the state to on. You can also set how long it has to be in the "on" range for this to take effect (in miliseconds). Set this way, with the pedal heel down, it is off. As soon as you step on it and rock it forward, it's on. Back to heel down, off again. I normally stay in the wah "sweet spot," so losing the bottom 10% of pedal travel is moot.
Someone chime in if I am missing the boat, but this is how I read the manual to explain it. I will be putting it to the test within the week. If all goes as expected, I will be back to a "step on, step off" (more or less) switching for my wah, which I think it what Nater is going for. This will solve a real pain in the butt issue for me.