I have to describe my idea with a presentation file (pptx). My presentation cannot exceed 20 slides, but I want to add some extra slides with some details and show them to listeners only if they need to see details and so it is possible details slide will not be shown. As I said before,I can not add details slides directly to presentation, because it reaches its slide number limit.
Is there any way to create some slides that will be shown in specific states, when I need to describe more details?