I did have it implemented one, but no one seemed to be using it, I’ve re-enabled it. This is how it looks in the normal PC web browser
Then you can find your book marks here
For the smartphone clicking here will take you to a list in which your saved bookmarks is one of the items. In any discussion, on the top of the discussion, you will see a bookmark button.
As for printing a discussion to ,PDF, this is simple. In your web browser on the PC, right click:print…then print to .PDF If this isn’t a print option, just download the correct driver.