The bindings inspector shows all the available bindings for a component, and turns red the ones that are currently invalid. Both the key and values are editable by double-clicking in the cell, or by dragging bindings from the browser onto the table view. You can also create new bindings with the "New Binding" button and remove existing bindings with the "Remove Binding" button (or by blanking out the value of a binding with the editor). Lastly, if you define a missing key or action as the binding, you can select it and click the "Add Key" button to go through the Add Key/Add Action dialog.
Here's an example of a binding name in editing mode.
And here is a snapshot of a binding being dragged to the inspector view. You can also drag onto HTML or WOD entries in the same way.
Here's dropping onto a binding in the HTML view.
And last, but not least, there are new Delete Tag and Unwrap Tag actions in the editor. Delete tag will remove the tag you're under, and all of its contents. If the tag is a WO tag, it will also remove the WOD entry if this is the last tag reference to it. Unwrap tag is the same, but only removes the tag and does not remove the tag's contents.
Note that all of these features are still Experimental (they are rewriting your WOD and HTML documents, which could mean they could decide to EAT your WOD and HTML documents). To try them out, grab the latest nightly and go to Window=>Show View=>Other... browse down to the "WOLips" category and select "Bindings (Experimental)".
One element that isn't quite there yet is undo ... Right now undo is handled separately in the WOD and HTML, so if you perform an operation that requires rewriting both, you will need to undo in each to undo the changes. I'm working on trying to figure out how to do a composite undo manager, but it's not there yet.
Check out the videos in the previous posts to see some of the slightly older versions of these features in action.