In LibreOffice Impress 5.0.5.2 I opened a .ppt presentation where each slide has a title and a body (visible in screenshot).
I would like to create a "table of content" slide that would just list all slide titles.
"Insert > Summary Slide" sounds exactly like the kind of feature I need, but unfortunately it is greyed out:
QUESTION: How to easily make such a summary slide, without having to copy-paste each title?