While building a report, the power-user can customize it to the capabilities and preferences of the end-users who will be using the slides.
Interactive mode supports:
Changing the order of columns (bar charts)
Changing the order of rows and/or columns in tables (tabular reports)
Selecting, highlighting, or changing different options on a slide
Interactive mode allows power-users to make customization edits and configuration changes to the slide(s) to more closely resemble how those slides will look to the end-users.