This is just one layout example, you can have others.
You can run this script from the little GUI above or with a hot key.
It's set to a 1920x1080 screen, for dual monitors just set larger coordinates.
The mixer needs to be free and not docked as I can't see a shortcut to un-dock.
If you need the script to un-dock it will need click coordinates.
Download https://www.autohotkey.com/ install
set the AutoHotkey.exe to run as admin (this will allow it to access Biab if it's set to run as admin).
Copy code and save to my script.ahk, double click to run, or as mentioned you can include it in the GUI above or add a hot key to the script.
Code:
#NoEnv
#SingleInstance Force

SetTitleMatchMode, 2 


IfWinExist, ahk_class TAudioEditFloat
{
	Winactivate, ahk_class TAudioEditFloat
	Sleep, 100
    WinMove, ahk_class TAudioEditFloat,, 0, 800, 1920, 300
}
	
IfWinNotExist, ahk_class TAudioEditFloat
{
    Winactivate, ahk_class TBandWindow 
	WinMenuSelectItem, ahk_class TBandWindow, , Window, Audio Edit, Moveable Audio Edit Window
    Sleep, 100
	WinMove, ahk_class TAudioEditFloat,, 0, 800, 1920, 300
}

Winactivate, ahk_class TBandWindow 
Sleep, 100
WinMove, ahk_class TBandWindow,, 0, 0, 1440, 900


IfWinExist, Mixer
{
	Winactivate, Mixer
	Sleep, 100
    WinMove, Mixer,, 1425, 0, 500, 800

}

IfWinNotExist, Mixer
{
	Winactivate, ahk_class TBandWindow 
	WinMenuSelectItem, ahk_class TBandWindow, , Window, Floating Mixer Window
	Winactivate, Mixer
	Sleep, 500
    WinMove, Mixer,, 1425, 0, 500, 800

}