I have to admit I felt in love with Timeline Index.
Sometimes I hear some fellows missing FCP7 selection arrows to select all clips after playhead.
Just open TL index, then... do it very easily :
And there is so much more to navigate/select/find clips in your timeline.
Show Roles/Notes/Activated Angle columns by right clicking in the headings, then you get this :
Everything you can see there is searchable. You want apply an effect only on clips with angle "CAM 2" activated ? Just type CAM 2 in search box :
And of course others tabs can show you markers, keywords, log notes...
And as you know allow you to "mute" selected roles (audio for example)
Sorry if everybody already knows that, but I find using it a lot, so this is my tip sharing.