TexStudio is importing a studio and a light set, you can then use Blender as you normally do.

Please follow the installation steps written in the documentation https://texstudiodoc.readthedocs.io/en/latest/3.install/

Some studios or light sets might not be working with Eevee. If you get studios and light sets from other creators, make sure to ask them.

As for the included studios and light sets, here is the list of studios and light sets that are not working well with Eevee:

- Materializer studio

- Forest Shadows lights

- Window Light

If you have a favorite light set or studio you like, you can import it into TexStudio to have it ready in a few clicks in all of your projects. See the documentation for more details https://texstudiodoc.readthedocs.io/en/latest/7.create_studio/ 

TexStudio is making a link of the data from the object in your main scene to the object in your texturing studio. If you apply any transformation, it will make it a separate data and you will lose the synchronization.

To fix this, remove all the objects in the texturing scene using this button and re-import the object.

Decals like DECAL Machine, Fluent Materializer, or Sanctus Library are not yet supported inside the texturing scene. As those decals are separate objects, they are imported into the texturing scene but don't exist inside the main scene. If your goal is to make a render inside the texturing studio, it will not impact you.

We advise you to use your decals directly inside the main scene. We are working on a solution to make it work ;)