Just updated Logic to 13. Gone is the Gain stage in Channel. Now you select the Gain Tool in the toolbar, and select the wave(s) you want to adjust (you can select all of them on the track with shift, for example), and drag the mouse up and down to adjust the gain. I was not happy with this feature at first, but it actually works very well. It looks much easier to select loops, sounds and effects. Seids is updating her Primer and has a demonstration video including use with the new touch screen MacBooks!