Hi @Spikey - Sorry you’re having trouble with that lesson and I hope you’re enjoying the rest of the course. In the Styles panel, instead of:
…you want to choose ‘Open an Existing Collection…’ then browse to that same ‘Render Styles’ folder. See screenshot below.
As for adding to the collection favorites…this is an optional step so if it doesn’t work for you don’t worry about it. However I did just check that the option was there on both SketchUp 2019 and SketchUp 2020, Mac and Windows and it shows for me. Hope this helps. Let us know if you have any other questions.
