The materials are either using the Real World Size option (which has to be enabled for the objects the material is applied to) or Corona Triplanar Maps (where nothing needs to be done).
You can find more info about it here: https://forum.corona-renderer.com/index.php?topic=20616.0
I hope that helps.
If not, please explain what exactly seems to be the problem. Maybe screenshots showing what exactly you are trying to do and what is happening would help.
The problem is the following:
Whenever I add a UVW Map modifier, The texture appears too large. If I check the box "Use Real-World Map Size" Then all UVW options are disabled and I have to adjust the maps on the material slate editor one by one to make them the size I want.
This is frustrating, In the previous versions, the materials came with the real-world option turned off, and the tiling is set to 1×1 by default so I can adjust the UVW map however I want.
In the attached example, the box size is (100×100×64)cm.