SU Pro 2020 does not have a default tray

I have a new version of Pro 2020 for Mac. New files do not have a Default Tray to right of main window. Where is it?

The Mac version doesn’t have a default tray, that’s on the Windows version of SketchUp. Instead you have windows that snap together and can be collapsed by clicking their title bar. If they’re not already open you’ll find them in the Window Menu: Tags, Entity Info, Outliner, Components, Styles, etc.

thx, been using it since it was free from google but tapered off in retirement. now I have been summoned to do some work! good as I painfully bored. can you recommend a quick primer to re acquaint me with SU Pro 2020?