First off my point of view ... Your best bet is to use a UI that is maintained and updated by the developer. Yes you can say its updated through paths but its from different people and its a solid in my book.
Ok to answer your quest, each window has a settings for it, you should be able to change movable=true to layoutmovable=true. I cant look right now to make sure but you see the basic idea.
Author of: Default Plus
- With Infomap, Experience numbers, and all percentages and amounts.
Author of: High Fantasy
- A complete graphic and code re-write of the Vanguard UI to lend towards the high fantasy feeling.