Nothing hard about it...you need to re-author the dvd. Fab is Not a re-authoring application. It is used as a decrypter/transcoder, etc., to back up copy protected (commercially produced) dvds that you have purchased.
You can download and use dvd shrink (freeware) to accomplish re-authoring your dvd.
The reason no one has responded to your query is that your problem and your task at hand has nothing to do with Fab. It has nothing to do with the members here on cdf not knowing how to use DVDFab Platinum. You would have better luck posting in the newbie section if you have further questions, but I believe shrink will do what you require without any cost to you.
BTW, perhaps you should think twice before making disparaging remarks since it is you wasting our time...