1. Use Project Manager to collect your files into a new directory.
2. Having all of your files on one drive is not normally a very effective way to edit. It is better to keep things on different drives on your PC.
3. Agreed. Put in a feature request for sorting in Icon view. https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform
4. Create a new sequence using the frame rate you want to use and copy/paste your footage into the new sequence.
5. There are shortcut keys to change between panels. Shift-1, Shift 2, Shift-3 etc.
6. Sorry, but I don't understand this one. The audio tracks are automatic in CS6. Drop the audio and you get a track that matches.
7. I don't use Multicam much, but since I have a fast RAID I don't have playback problems requiring proxies. Hopefully someone else can address this for you.