It would be nice to have a button to return to the default pane view on mobile. This would be similar to “Save view as default”/“Restore default view” for boards on the app/web version. I supposed this could be the same thing where all views would return to default (which would be the same as the app since panes on the phone app are just the Mobile board). But being able to reset them individually would be slicker. On the mobile app, each board seems like its own view rather than part of a collective like the boards on the desktop/web version are, so being able to reset them individually seems more natural.