I am likely overlooking something simple, but have Googled, searched this forum,and re-read the print chapters in Martin Evening's and Victoria Bampton's books.
After attempting to create a Custom Package for printing in LR 5 and applying 2- 8x10's to a 13x19 page setup, the program changed to a single cell and (the problem) in the right panels column, the options for single page, packages, or custom layout are not visible. I'm sure there is a way to get back to the full panel, but I have been unable to figure it out with my feeble brain. Any suggestions are greatly appreciated.