Investigate book with both landscape and portrait pages
I've an old book where I sucessfully swapped landscape and portrait pages, but there are complications why I cannot use it as a model for my current project. Since I no longer remember how I accomplished this, I have to investigate how to build a book with both landscape and portrait pages.
I know about paragraph tags set to use a new page. Also a table on Reference page which lists Paragraph Tag Name, Right-Handed Master Page, Left-Handed Master Page, Range Indicator.
But this doesn't seem to be enough; something is not working.
Could you please point me toward resources which discuss how to do this?
Thank you kindly,
Theresa