promidi
One thing I noticed is the "Duplicate Track" icon to the right of the add track icon . This creates a duplicate of the selected track - by default sans contents. Right click the icon for more options.
Also, if the source track is a simple instrument track, it also creates a duplicate instance of the vst soft synth rather than simply a second reference to the source vst soft synth.
Yeah, not sure why the default does not duplicate audio but it is easy to fix with right-click. Fortunately the settings are persistent across sessions.
Finally, it is possible to create a duplicate instrument track.
Clone track in the track context menu has also been change to duplicate track. It does show a dialog similar to the old clone track dialog and supports the improved instrument track handling.