We’ve made a few changes to how keyboard shortcuts are managed with build 586.
Key Bindings can still be accessed via Tools->Options->Key Bindings but this page now lets you search for key binding, either by name or by the actual keystrokes. This page also has all of the key bindings in one place for easy browsing. The other change was to add a separate page for each Component(Category) of key bindings in the navigation pane.
While these are relatively small changes, we hope they will make life easier for those who rely heavily on keyboard navigation.