Russ,
On the GW7 you can store 10 of your favorite sounds (they can be all pianos, 3 pianos and 3 electric pianos, etc.) by picking the sound you want, hold the favorite button and selecting and holding one of the 10 catagory buttons until you see the word "writing" and complete. This way, by just pushing a single button you have 10 sounds you need all the time.
Also, you can store an additional 10 sounds using only the catagory specific buttons and not turning on the "favorite" button light. The only limitation is that the sound you save has to be from the specific catagory marked above each catagory.
So, you can have 20 favorite sounds on single pushed buttons.
You can also save 32 "user performances" including single, dual, split sounds which are called up using the data wheel.
I hope this information might help.
This is a great little keybaord for sound quallity, weight and price.
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George Kaye
Kaye's Music Scene
Reseda, California
818-881-5566
www.kayesmusicscene.com