There are a couple ways of doing this now in Visual Studio (Microsoft's own Productivity Power Tools 2012 is one), but none that work in SMSS. I would dearly love the ability, after custom-sorting my tabs, to be able to move forward and backwards through them in the displayed order.

Currently you can only move through your tabs in the order you last clicked on them -- similar to Alt-Tab in Windows -- but not necessarily in the order they appear visually. I'm thinking Firefox/Chrome/Internet Explorer-type "sensible" tab movement.

devart will be my eternal hero if SQL Complete had the ability to do this to SMSS.