registry.
Use the common rename folders trick.
Have the default one and 2-3-4-10-100 other folders renamed as like
C:\Falcon BMS 4.33 1
C:\Falcon BMS 4.33 2
C:\Falcon BMS 4.33 3
If u have different settings like theater per folder u could export for each the registry keys and merge after you rename.
The trick with active theater change via registry only works also… I believe WDP or MC or even BMS Launcher could do this if they wanted.
The setup folder can remain only once no need to populate also.
This will be needed in case of updates and if u want to have different update versions ready.
So u could have
C:\Falcon BMS 4.33 Setup
C:\Falcon BMS 4.33 Setup vanila
C:\Falcon BMS 4.33 Setup UP1
C:\Falcon BMS 4.33 Setup UP2
Just in case to recon which is active at the time I create a txt file with the folder name inside the root bms and setup folder.
C:\Falcon BMS 4.33 1\Falcon BMS 4.33 1.txt
C:\Falcon BMS 4.33 2\Falcon BMS 4.33 2.txt
C:\Falcon BMS 4.33 3\Falcon BMS 4.33 3.txt
C:\Falcon BMS 4.33 Setup vanila\Falcon BMS 4.33 Setup vanila.txt
C:\Falcon BMS 4.33 Setup UP1\Falcon BMS 4.33 Setup UP1.txt
C:\Falcon BMS 4.33 Setup UP2\Falcon BMS 4.33 Setup UP2.txt