ability to place marker on audio rather than track/timline
It would be great to be able to attach a marker directly to an audio clip. Marking the timeline is great, but if you mark a section of a long clip and then move that clip to a different point in the timeline, the mark no longer points to the section of audio you wanted to keep track of. Most video editing applications allow you to mark either on the timeline or on an individual clip. I would love this functionality in Hindenburg.
Cue Points already do that.