You can copy from one chord sheet to the other, it will copy all or selected chords.
If you are creating up the chords in the Plugin Standalone (rather than VST) you can just "Save" then in Biab "Open" the same file in the recent list.
Just make sure you have the option in the Plugin/Plugin Standalone Generate button "WAV Instructions Only" so it's quicker.

The Plugin Standalone is hidden here: C:\bb\BBPlugin\Files\Band-in-a-Box DAW Plugin Standalone.exe

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