I extremely hate this sort of imposing procedures and don't want to have any FSX sceneries on my relatively small C: drive, but all seems to work.
I think you really got it backwards:
- The OLD installers forced you to install in the root of the sim, with no choice.
- The NEW installers are finally allowing you to freely choose ANY folder or ANY drive.
So, instead of saying "I extremely hate this sort of imposing procedures", I would expect a "thank you for finally allowing me to freely select the destination folder"
The installer is only SUGGESTING a default folder that, like any other Windows program out there, is under C:\Program Files, but that's just a suggested default, nobody is forcing you to accept it.
Or course, having the freedom to select a folder, also means you might not pay attention to it, make a mistake, change your mind, etc. If you realized you made such a mistake, the correct procedure to "move" the installation of several products is as follows:
- Uninstall everything
- As the last stage of uninstalling, reply YES to the question "Do you want to remove the Addon Manager?". This will clear up your initial choice, allowing to select the folder freely again, on the next install.
But now, how to continue best to get those folders into e.g. FSX?
Now that you can choose the destination folder freely, selecting the FSX root as a destination might not be the best choice. Just choose any folder, on any drive, that has enough space for everything. The FSX location is totally irrelevant now.