I hope you remember you're not limited to drawing samples. Using the generators and filters in the sample editor generally gives nicer results.. and also, nothing beats an actual synth sample for fat basses. Experimenting with .wav files advised. 
The manual mentions the differences in shorcuts between OS X and Windows but how about using the Quick reference printouts? The manual and the printouts also tell you keys F1...F8 or Cmd-1...8 change the octave. So you're not limited to 2, you're limited to 8.
Dimmed patterns aren't extended, they're just the next/previous pattern as seen in prospective mode. You can enable that in Config > Layout > Pattern Editor or just by pressing the tiny P button above the title, song duration or peak bars.
Extending patterns is done by increasing the Len. value in the main panel. Note that this value is always hexadecimal, even if you are using decimal numbering for pattern rows.
Thank you! You've been extremely helpful. The Prospective mode is exactly what I needed. Extending patterns is as well. Although sadly, I only know how to draw samples. I have no idea where to start with using the generators and filters (or even where to find them). I downloaded a bunch of samples from
www.samplenet.co.uk and they didn't work right...maybe because they were mp3s instead of .wavs? Although I got a bunch of samples from the Open Path music .zip from the other thread that linked to the One Laptop Per Child wiki. I'll have to mess with those soon!
Finally, Cmd + 1-8 doesn't work for me? And F1 - f8 are already assigned to other functions on OSX...like master volume, monitor contrast, and Expose.
Anyhoo, I guess I finished both of those modules for now.
http://www.mediafire.com/?bimxbvjfnmtand
http://www.mediafire.com/?yptvm9mmfw1
