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I'm a big proponent of auto scroll as I feel it is basic to music display. In this case though I think 2 versions is preferable if adopted, with the advanced version being worked on in the future as time/interest [yours] permit. The only advantage I can see to a highly programmable version is it could eliminate the need for one piece of hardware, a page turner, over the current version. A high programming capability can also be considered a time consuming one and may not be worthwhile to most/many users.