Blender 2.80 is using a new toolshelf and toolsystem, so we need to update the toolshelf in Blender's clip editor too.
The workflow for tracking in the clip editor used to be split between toolshelf on the left and sidebar on the right.
In the toolshelf you would start setting up your scene length based on clip length, prefetch footage etc.
Then you would set the tracking settings for new markers in the toolshelf.
However, the tracking settings for the active track were in the properties sidebar to the right.
Solving and cleaning were on the left in the toolshelf.
So overall, the clip editor was using the concept of toolshelf and sidebar rather loosely.
Blender 2.80 is having a different, a bit more stricter approach to the toolshelf (now toolbar)
The toolbar is the place for active tools, the toolshelf Tabs are gone.
However, now we have Tabs in the sidebar.
So we need to update the overall design of the clip editor and also think about how we can adapt the tools and operators to the new workflow.
The following tools should only be relevant to the Clip View, not for Graph or Dopesheet View. There left-click+drag should only move the time cursor, just like in regular Dopesheet.
The closest thing to a new tool is probably Add Marker.
We used to just Ctrl+Click to add a marker, which is very convenient. Maybe we can keep that too.
However, the new toolsystem would make it possible to move all the settings to the topbar (and hence to the tool settings in properties editor as well).
So you choose the add marker tool. In the topbar you can adjust the settings for new markers. Here's a screenshot of the settings currently in the toolbar.
To adjust the settings of the active marker you can still use the track settings in the sidebar.
With the Add Marker tool active you should still be able to track.
EDIT: The Add Marker tool should not only add the marker, but also move it, as long as you have the mouse clicked. Just like Ctrl-Click now in 2.79.
The Clip Editor has a little playback area at the bottom. So the add marker tool would have to respect that, so that we have the tool active but can still drag the time cursor in the cache/playback area at the bottom of the editor.
Another active tool could be box and lasso select.
Annotate just as in other editors. It should, however, be still possible to assign the annotation to the mask (Data Source), for track masking.
Ideas for other tracking tools
There are some other tools I could think of, but those are maybe something for later and would require a bit more discussion.
For instance, maybe it would be nice to have an orientation tool.
Right now you first choose 3 tracks, then hit Floor, or Origin etc.. Depending on how that went you might have to choose 3 other markers and do that again. But I could imagine that it could also be a tool:
- Activate Orientation tool. By default it would be set to "Floor". Once you picked 3 markers they will automatically be set as the Floor. (Maybe even with thin relationship line between them to indicate they are the floor?
- Could have an option where you Ctrl-Click for Set Origin, Shift-Click for X-Axis and Alt-Click for Y-Axis.
- Could have a mode to set the scale. Tool Setting would be the scale (default=1.0), tool would work in way that if you connect 2 tracks it will apply the scele to the scene.
Masking could benefit even more from the active tools concept than Tracking. But even though it is part of the clip editor I would rather open another Task for that.