When copying keyframes in a segment and pasting them in another segment that does not have the targets added, automatically add them.
Use first animation's blend time for blending out previous animation when switching segment. I recommend making a "main" layer and animation per segment to control blend in settings, sequencing, etc.
Fix segment not being saved in v6.0.0-alpha.2
Undo fix from v6.0.0-alpha.1: The "Stop" storable action does not stop peers. Use StopAndReset instead for peer syncing, switch to another animation or stop every clip.
Hide animation segment name from animations list if segments are not used
New Timeline instance don't use segments
Rename Overview UI to Animations (otherwise "+" doesn't make sense)
When renaming a segment, also rename transitions to that segment