hello Frankiek.
The problem is that each mod has its own architecture.
For some, air.ini and plane.properties are encapsulated in SFS files, others are not encapsulated but in sub-folders not bearing the same name, some activate periods with selctor and others with jsgme, etc....
For each mod, I have to rework the operating routines, adapt and then test them (very time-consuming to get something working with a minimum of bugs).
What's more, I'm not a programmer, I'm learning on my own, so my code is far from clean and optimized.
If you wants the plain-text ps1 file to work on, i can send it in PM. You'll pull your hair out when you'll see how bad where my tricks, but I can provide it.
I currently have 3 tools that work (not sure they're bug-free), one for B.A.T, another for IES and the last one (actually the first one I wrote in Powershell) for Ultraspain.
The only one translated into English is the one for BAT (and yes, I'm French, so I write script texts in my mother tongue).
Again, translation is therefore quite time-consuming for me, as I speak very little English and have to use online translators to be (at least I hope so) well understood by English speakers

.