Hi its been a while since I've been given a chance to review logic and forgot how to on/off effects using the keyboard on my midi keyboard. So the on setting is what I set my parameter value too and the off sets it to unity or another value I set. For example the effect starts at unity and then when I hit the key it goes to a specified value and stay there until I hit the key again to trigger the off value and goes to back to unity or whatever value I have specified for its off value. I'm sure this is done by making buttons in the environment so can somebody please help? Logic 9 user here.

Hey K1, Have you checked out videos 7-13 of the Logic 304: TNT 3? I think this is the kind of On/Off switch you're looking to create? [url]http://www.macprovideo.com/tutorial/logic304[/url] Let me know if you need more help :)