Long press hold and drag to reorder for any label, inbox and stars
Wrike has a great algorithm for this. learn from Mailboxes mistakes. The star list should be one list to rule them all. Moving in any label list should affect all the others no matter how drilled down or how far zoomed out. This same reordering could work for due dates and priorities. Due dates click and drag like Appigo ToDo does it. MailboxApp just killed off stars. Here's your chance to show us why stars are essential by making them the master list across all labels! Perhaps talk to ActiveInbox and sync with their chrome extension for gmail. Then you can compete with Dropbox on the Client side app for PC and MAC too!!!
While this is definitely a neat idea and I can see how it would be beneficial to some users, we prefer to take a stance that allows users to decide which workflow suits them best. Some users use stars and flags extensively, while others never touch them. We don’t want to force any workflow, so we’ll be declining this one for now. We may be able to revisit in the future though!