Where are the videos for adding windows, doors, doorways, and soffits to the room design? New to this software but can't find this anywhere, including the help index.
In custom layout click on the red ? Icon. This will open the help index in the topic job Processes under custom layout. Double click on custom layout operations. Here you will have a list of several topics. You may want to look at Walls-Editing for instructions on how to create geometry on a wall to make cut outs like doorways etc. Also take a look at Installing wall items for installing objects like windows and doors.
As for the online videos.
I personally have not viewed them but. I have looked at the overview. I would take a look at the videos under Job Processes and custom Layout.