Here's an example script you can try, a few navigation functions are added more functions can be added to do whatever you like. These are all triggered by Midi input.
Install www.autohotkey.com then set C:\Program Files\AutoHotkey\AutoHotkey.exe to Run As Administrator by right click > Properties > Compatibility, if Biab is set to Run As Administrator.
When you close the GUI it will be still running in the tray "H" right click to close.
You can preset the defaults in the script.

A simple menu select function to open/close Lyrics window with a Midi note:
Code:
winactivate,ahk_class TBandWindow
WinMenuSelectItem, ahk_class TBandWindow, , Window, Lyrics, Big Lyrics Window


Download AHK_Midi2Keypress.zip
Unzip anywhere or C:bb\Scripts\AHK_Midi2Keypress
Run Midi2Keypress_1.0.ahk
https://stash.reaper.fm/v/46802/AHK_Midi2Keypress.zip


Watch https://www.dropbox.com/s/hn8n2pnuy3laep8/MidiToBiabFunctions.mp4?dl=0