I would like to see releases as containers rather than milestones

We were doing some extended planning yesterday, and it is very hard to use releases as they currently exist. It would be more helpful if the release pane allowed you to attach stories/bugs/chores directly to a release rather than having it rearrange the near the release milestone. There are times when we may have a couple of releases in process at the same time, then it's impossible to tell at a glance which stories are for which release, or how close we are to achieving a release. One of the nice features of lighthouseapp.com is the ability to see a graph of how much work has yet to be done for a release. (if there are 20 points assigned to a release, 15 are done, you are 75% complete). Bugs & chores could get a default 1 point for graphing purposes. The releases could still float in the iteration cycle as they do now, but they would be attached at the bottom of the latest bug/chore/feature in the backlog. That would be a cool feature.