PI Processbook: How do you 'fit all', prevent 'open in new window', identify dead links and fix back button for thousands of PI pages?

Hi,

I am very new to PI Processbook and I am trying to fix a few of its functionalities. I would like to know how to:

1) Automatically 'fit all' of the content in the display when a button on the page is pressed.

2) Prevent 'opening in a new window' when a button on the page linking to a display is pressed

3) Determine buttons which are 'dead links' (i.e. existing buttons which are linked to deleted pages)

4) Fix the back button on the browser toolbar (Currently, if I view pages A B C D C in that order, pressing back takes you to page B instead of D).

I am already working with 2000+ existing PI displays and so I think maybe add-ins would be the way to go since the solutions should apply to all of the displays. Unfortunately, I am only a beginner VB programmer. Any help on any of these points would be much appreciated.