While in the constraint command, be able to click a constraint in the Browser and edit it, rather than having to escape out of the Constrain command, right-click the constraint, and click "Edit."
Also be able to do the reverse workflow: After we invoke the Constraint dialog box by editing a constraint, be able to click "Apply" and then go straight into creating new constraints.
Basically, make creating and editing constraints a seamless process, rather than two clumsily separate ones.