Originally Posted By: CRAZYSAX
Many Apps allow you to do this and there are soo many reasons for this to be implemented like making keyboard shortcut for Transposing a Selected/Highlighted Up/Down a Semitone for example.. Please strongly consider Create Custom Keyboard Shortcuts. All you musician and BIAB users out there please support this so it give it a better chance of getting implemented!! Thanks ALL!!

What shortcut key do you want ?
this is alt+T
Code:
;Transpose Selection
~Alt & T::
  WinMenuSelectItem, ahk_class TBandWindow, , Edit, Transpose, Transpose From .. To ..
return

Save it As BB Transpose Selection.ahk
and run it, it will sit in the System Tray as a green icon "H"
Install AutoHotKey If you have Biab set to Run As Administrator set AutoHotKey.exe to Run As Administrator.

You can shortcut any menu item or any dialog to automate any function you like with a shortcut key or a GUI like below
Quick Menus Tool for Biab


and Chord Picker Tool below

Biab Track Injector for Reaper
Free Biab Chord Picker Tool