I have a view that uses sematic zoom to show increased details on a collection of data. However, there is nothing obvious that would lead the user to think about doing pinch/zoom. (I found this problem with the People app in Windows 8. I never knew that
it supported sematic zoom). Are there recommendations for how to provide users with hints that would make it more obvious that a view uses sematic zoom?
Ironically, I didn't realize the '-' was even there. I guess a popup will need to do. Sounds like there is no standard icon or other indicator to indicate semantic zoom. Thanks for the suggestions.