Disclaimer: I'm Joel Moss, CTO of Codio

We've worked very hard on building a system that allows you to customise your keyboard shortcuts. There's still more we can and will be doing, including quick tab switching. And if you wait a few days, you'll also have a quick-open feature just like Sublime's cmd-t.

We'd love it iof you could post your feature requests on the forum http://forum.codio.com/

cheers!