I am trying to reduce the effort needed to keep a certain slide (lets call it SlideXYZ) up to date. SlideXYZ is an important content slide that can be found in multiple slide decks. I initially created slide objects that updated automatically when a change was made in the "source slide". However, slide objects unfortunately don't contain animations (they are simply a snapshot of the actual slide). I am now trying to write a VBA script that will search and replace SlideXYZ in each deck with a newer version of SlideXYZ. However, the slide number is dynamic (it changes when a new slide is added above). I need a static, constant reference to SlideXYZ. 

I thought of copying SlideXYZ into all presentations once and then using the Slide.Name property to find all instances of it once an update is needed. 

However, it appears that the Slide.Name is reassigned by powerpoint each time the slide is pasted into a new presentation. I need a reference that will not change so that I can find and replace SlideXYZ.