On Windows, there is only one button.
It's Mac OS that has 2 buttons.
What exactly are you missing?
Thanks for the answer. I believe I am missing the ability set up the page size, margins and the ability to save this page size as a template ... at least I cannot figure out how to do that. The one button that I do have is labeled "page setup" but it just sends me to a "print setup" where I am only able set up my printer (when completed I will be saving this project as a jpeg and sending it to a print lab for processing) I am trying to set a page size of 16" x 20" with 32 pictures (4 columns x 8 rows) Any help you are able to provide would be appreciated - thanks.
Page setup is the correct place to set the basic size, which is set there in the printer driver - no matter if you are printing yourself or printing to jpg. LR reads back values from there after you have set it up. This is also important to be able to set borders in LR to 0 for borderless printing, for instance.
Once you have set this up, you can set all the values for your page in the right panel.
Once you are finished, you can store this as a template in the left panel of the print module.