Hi,
In GW-7, you can select up to 10 favourite sounds (Just 08 in Tyros and 3000).
First, you have to save your favourite sounds in 01 of ten sound group buttons (by pressing and hold Favourite button and select the button to save).
When Favourite button is pressed, you can choose your saved sounds in 10 sound group buttons. If this button is off, the sounds are back to its default.