Good idea, but unfortunately, when I export to XML, I end up with over 50,000 lines of code, with each element of every slide having four location values (top, left, right, bottom). Manually changing the location values of each and every object is essentially not possible. I'm looking for a method of being able to select all of the slides, as a group of sorts, and move them all at once... even if I had to use the arrow keys and move them one pixel at a time. I just don't want to do it for all 100 slides one at a time. I've even tried creating a larger slide master template in PowerPoint, but that creates its own set of problems.