After opening a session an getting the Missing Files Dialog, when chosing manual or automatic. Keyboard focus should switch to the Relink Window. Further ther should be shortcuts for "Find Links" and "Commit Links" Button
Right now if you want to change link/inverse pan/inverse rear/ F-/R inverse status, you have to do it in the pan window with the mouse. It would great to have to assigned to some of the sel/in buttons or even some extra encoders so you can access them from the S3 as well
Rewire is the way many of us pro tools producers make the best of working Ableton into our sessions. The problem is 3rd party plugins are disabled. "Link" looks to be the future and Pro Tools should be first to add it.