Ok this is quite specific but I've never used Revit before and am trying to speed run for a project. I created a project years ago using Rhino and rendering with Twinmotion and I wanted to do this again but use it as an opportunity to learn Revit for the first time and then render the project using Twin motion.

Basically I wanted to know what precautions I should take with designing to make sure the rendering process in Twinmotion runs smoothly.

I'm currently downloading the Twinmotion link for Revit so I can link them together so edits made on Revit will update on Twinmotion. But my biggest query is when I did this last time with rhino as soon as I went to render I added a tiny marble texture to the front patio and then suddenly my entire project was made of marble, this was when I realised I needed to assign everything to layers based on what materials were being used for different parts. So I'm basically enquiring about how to do that or equivalent on Revit before I start this project so I don't run into the same problem.

Also, if anyone knows of any good guides on youtuber of a project from start to finish of making on Revit so I can get a workflow guide of how to go about this that would be much appreciated.