Try this, View-Small sets the window to 821 x 675 same size as plugin mode, the position is left top, the size and position can be changed like if you want to move the BB window to the second monitor.:

Exe and script
https://www.dropbox.com/s/k9s1ufi9jdgfk4x/Biab%20Chord%20Picker%20beta%202.0b2.zip?dl=1


Script only
https://www.dropbox.com/s/z4nsnhtlgt4y1nr/Biab%20Chord%20Picker%20beta%202.0b2.ahk?dl=1