> It would be even nicer if the BIAB plugin would try to follow the tempo map of my DAW as other plugins do.

Agreed. Currently I’m unaware of any protocol that would allow a plugin to retrieve the tempo map that is set in the DAW. Plugins are intended to be “live” (ie processing MIDI or audio in real time) so they don’t get much access to things while they are stopped.

There’d be a (slightly awkward) way of doing it, by exporting a MIDI file from the DAW and then dragging that midi file onto the plugin, where the plugin could then read tempos and time sigs from the MIDI file. That’s not implemented yet for the plugin, its something we’re planning.
Have Fun!
Peter Gannon
PG Music Inc.