Watch: BB-AHK-Count-In & Start Loop.mp4

If you are running Biab As Administrator:
To run script only .ahk install https://www.autohotkey.com/ and set AutoHotKey.exe to Run As Administrator
To run .exe set to Run As Administrator

This uses the system audio for the count-in beeps so if Biab is set to use the same Audio Device, un-check the Always On in Device Driver.
Remove .mp4 and unzip

Download below

Attached Files (Click to download or enlarge) (Only available when you are logged in)
Biab Count-In with Loop Start.zip.mp4 (960.69 KB, 76 downloads)
Biab-Count-In-StartLoop.png (82.02 KB, 665 downloads)