Well, at least for Treemaps, the function to drill back up could be made available simply by clicking on the header of the category that you've drilled down into.
Click on the header, brings you back up a level. It might even be an improvement for desktop usage too. H -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/google-visualization-api. To view this discussion on the web visit https://groups.google.com/d/msgid/google-visualization-api/776665ef-df94-4349-9919-1564c0b73c09%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
