It would be really good if the timeline had options to show all keys while working on a character - quite often your trying to match a particular key with a key for a different body part.
eg: animating blinks - its much quicker to match up the exact frame a blink occurs if you can see the keys for all face elements
also - the timeline/dopesheet needs to be undockable and expandable - with a two monitor set up its common to place the timeline on its own monitor so you can see all the layers at a glance - currently its very restricted in screen space
