Group MSIX Shortcuts in Folders in the Start Menu

Further to the conversion of a batch of App-V packages to MSIX, I have experienced the “StartMenu folder skipped during conversion” Issue nicely blogged by https://www.advancedinstaller.com/appv-to-msix-startmenu-folder.html and also by “https://www.alexandrumarin.com/group-msix-shortcuts-in-folders-in-the-start-menu/.

I know i can rectify the issue by these 3 steps:

1. Declaring uap3 namespace in the <Package> node,
2. Stating uap3 in ignorable name space
3. Using the Visual Group tag at the end of visual element of the application

All good but I want to address this issue programmatically if possible as I will have raft of these to address:

I have found that part of this can be address with the excellent https://www.advancedinstaller.com/msix-tweaker-automating-digital-signing.html tool by Advanced installer . But was wondering if a way to completely do this via say Powershell.

Oh my tool set MPT, TMeditX and AdminStudio

Any advice greatly appreciated