Basically I've made some very complex forms and I have created a review summary for the 3 page beast.
Now my problem is I need my users to quickly navigate between the pages and their selections if they want to make changes.
I have tried hard coding this PHP and I can get it to navigate through the pages, but all the data is lost when loading a particular page within the form. - My methods were very similar to yours given in the documentation with a few minor tweaks. One makes sure they are taken to the proper anchor within the form (but I tried it without my additions and it still caused problems).
I also used Jquery to try and load the pages similar to your previous/next buttons and this also lost my data. This was pretty much a fail, but making text function just like a form button you can basically navigate your form freely.. I created hyper-links and 2 buttons that go to the first and last page of the form. when applying the definition to hyperlinks you could also navigate the form freely between pages - again still clearing all the form data =(
Finally I used change property to hide and show different divs within the form page. This actually worked - but eventually it would break and show more than one div. More or less this was a total mess. I figured since each form page is given a DIV and I'm assuming by your method jquery hides and shows the proper layer, I could use this in simple manner. I'm also sure your jquery code stores the data in a string somewhere that I haven't stumbled upon yet.
I realize that I probably need to have the data stored and possibly use a pre-render hook, however that particular hook stumps me to pieces. I literally worked on it 3 hours yesterday and was just too stubborn to ask for help. Now I'm asking for help.
Thanks for your time and I've just drank about 3 cups of coffee so I'm fired up and ready to do some coding hope someone is already awake.
-Verified owner of Gforms, Product Add-ons, and many more of your great plugins =)
edit: I added an additional method I tried.
edit 2: I have been able to access the data if the form is submitted ie populate a form based on a saved entry, but I need it as they're submitting their first form.