I'm probably just missing something simple, but I just did a fresh install of Premiere on a new computer, and none of my audio tracks have the line on them that I can click and drag to adjust the level of the layer (or add keyframes, etc). I have to right click and adjust the gain that way. I've looked through all of the menus and can't seem to figure out how to get that line back.
Second question - In my previous install, when I hovered over a channel on the left side of the timeline and scrolled up and down, it would make the channel bigger or smaller. It's not doing this on the new install, where's the option to turn that on?