As an alternative to creating a custom show, you can insert slides from another presentation into your current presentation. This helps save time and redundancy as well.
A major difference between custom shows and inserting slides is that inserting makes a copy of the slide and, if you change the original, the copy isn't affected. Custom shows “link” to the slides, so they are stored only once.
To insert slides, follow these steps:
Select the slide after which you want to start inserting other slides and choose Insert, Slides from Files to open the Slide Finder dialog box, shown in Figure 9.9.
From the Find Presentation tab, ...