The Scalable Dashboards feature is now available and would be the best way to handle having a single dashboard that scales across different screen sizes.
Sorry to hear that - it sounds like something isn’t working as expected if tiles are getting moved out of order when you press save. Would you mind sending a note to support@sharptools.io with additional details of what’s happening? (If it’s not too much trouble, a short video would probably be the best way to demonstrate)