Poking at the time editor:
It seems to only let me place keys on a layer on top of the track. Animation layers are important, but other times you’ll just want to edit the clip, and it seems like you can’t do that yet. You can edit keys in the graph editor, but not normally in the viewport. You also can’t drag keyframes on clips around in the time editor, only keyframes on layers, and I can’t find any way to add more attributes to an existing clip.
(My guess is that this was intended to handle editing clips, but was limited to importing clips from other files and only editing with layers for this release. Keyframing on clips is actually in the scripts but commented out, so hopefully it’ll get better at this in the future. If you’re working with mocap data maybe it’s okay to not edit the base data, but for keyframe animation you’ll really want to be able to edit the clips.)
I can’t seem to get pose creation on a track to work: if I move something in the middle of a track and create pose, a pose marker appears in the track, but it doesn’t save and the changes are lost when I move the time slider. I also can’t seem to see inside poses at all: they can’t be expanded like clips and their attributes and key values don’t seem to appear anywhere. I have no idea how to edit a pose after creating it. From the documentation it seems like it should interpolate between poses, but this doesn’t seem to happen and it just steps from one to the next.
The weight field seems to randomly become enabled and disabled. Just soloing and unsoloing a layer will make it become greyed out when it wasn’t before. Not sure what’s happening there.
Ghosting doesn’t really seem to work: if I create a pose track and ghost that it’ll work, but ghosting a regular track won’t, even when just keying a simple mesh. I’ve never had much luck with ghosting in Maya, but it would be really nice if it would work.
You can solo a track, but I haven’t found a way to solo a single clip inside a track, eg. to see a single clip without it being blended into another clip.
Overall, it’s looking pretty useful, and hopefully it’ll get better at editing clips. It’s definitely looking like an improvement from the trax editor. I’ll keep experimenting with it but probably won’t try to use it for much until I see how it irons out through a SP or two, and I’m curious to hear other people’s thoughts.