Anyone here have good knowledge in mixing with....

.....the MRS Zoom 8?
I got this as a Christmas gift and I want to record my voice in 4 part harmony (yes doo woop). The theory is simple but the instructions are a bit overboard. Is there someone here in the NYC area that can help? I called the company but they are just in sales and not too knowledgeable.

Tks
Rick (RWD)