Here's a Free Flowchart maker
https://www.nchsoftware.com/chart/index.html
Click the: Get it Free. A free version...

I uploaded the project file, you can change it, correct it and add whatever you think Biab should display.
I just made the red active flow (right click element > Properties).

Remove the .mp4

Attached Files (Click to download or enlarge) (Only available when you are logged in)
BB-MIDI_3.ccd.mp4 (15.13 KB, 9 downloads)
BB-Midi-Driver-Flowchart.png (92.4 KB, 32 downloads)