Customization isn't available on the iPad app at this point. For the first few versions of the app we've focused on implementing the essential features from the desktop version, but I'd definitely like to see customizations included in the future.
SmartMusic Product Specialist
These on-line forums are intended for the exchange of ideas among the users of MakeMusic products. If you'd like individual help from our technical support staff, please contact us directly at www.smartmusic.com/support.