When originally setting up a scene selection menu, it asks how many links you want per page. After that initial choice, how do you change the number of links per page? I cannot find that option anywhere, and I can't believe it would be impossible to change. At least I hope not. Please help. Thank you.
A scene selection menu is not a dynamic object. It's simply a regular set of menus that DVDA builds for you based on 1) the current state of a video (number of chapters, names of those chapters) and 2) your answer to that question. In short, the menu's been already built -- from that point forward, you're on your own.
It's the same as if you inserted a table in MS Word. You tell Word how many rows and columns you want and, instead of you having to insert them manually, Word builds the table to your specifications. If you change your mind, though, you have to manually add / remove the rows and columns you want.
To fix the scene selection menu you have, cut and paste the buttons that you want to move between pages. Or, if you haven't made major changes to the scene selection menu that DVDA created then just delete it and insert a new one. DVDA will ask you the same question, and this time you'll give it a different answer. :)