Hyperlink to Last Viewed Page?

Greetings! I am building a non-linear course that allows the learner to pick and choose where she goes. I'm using standard navigation icons at the bottom of each screen, one that takes the user back to the first screen...and the other one I'd like to be able to have the user go to the screen she was on prior to the current one. When I'm creating my hyperlinks, I don't find that option...just "previous" which takes you back to the previous slide in the PPT, which most likely is not the one you just visited.

Is there any way to achieve this? I'd appreciate any assistance you can provide...thank you very much!

Shari