@Sebastian-Roth

Where is the setting to set hostname even if a user is logged in?

I was looking for it and stumbled upon my AD settings which is what I ended up fixing instead that fixed the issue.

Name them with the number they require in the group.

Eg 01-snapin, 02-snapin, 03-snapin

i’d split this up - use GPO or at minimum registry to achieve this then snapin to push out relevant xml start menu layout

Registry:
[HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows\Explorer] - 64bit location
“LockedStartLayout”=dword:00000001
“StartLayoutFile”="C:\PATH\TO\START\MENU\LAYOUT\.xml

you can partially lockdown start menu aswell so you give users a standard put they can pin their own stuff too (not allowed to edit what you’ve set)

the snapin could just handle which start menu they get

i.e. Admin-> this startmenu.xml
IT-> this startmenu.xml

just when they reach the location set in registry name it the same so like:
IT-Startmenu.xml copies locally to startmenu.xml
Admin-Startmenu.xml copies locally to startmenu.xml

Hope this makes sense