Click the Mix Table button on the bottom toolbar, and check the Volume box. Then change when you want it to go into effect by choosing the right choice in the drop down menu to the right of the Volume box.
Quote by sporkman7
hey this might be in the wrong forum, if it is just move it, but
i know theres the fade in button, but thats only for one note at a time
what if i want to take like 2 measures and have it all slowly fade in?

Yep, sure is.