Ok, I just find out about sending midi data to DAW was made available on build 626 updates:

Summary of fixes for the VST DAW Plugin (1.14.2)
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Added: Sending midi data to DAW.
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I assume we can sync and send midi data directly to DAW? (ie. without having to Drag and Drop, for quick preview and etc)

I hope to find some answers or more advanced video demonstration about BIAB VST before making an upgrade. Mostly about:

1. Syncing BIAB VST to DAW (ie. play along with other tracks in DAW; directly, without drag and drop, for quick preview and other audio related works)
2. Setting up BIAB VST as midi channels/input and 3rd party VSTi as midi output (ie. play midi from BIAB VST on 3rd party VSTi directly on DAW w/o drag and drop, for quick preview, sound search and design and other audio related works)

Thank you smile