Retain previous slide in attendee view

[arminru]

Sometimes presenters tend to jump too quickly through slides or an attendee is particularly interested in a certain slide that's not presented long enough to fully incorporate all of its content.

It would be nice if there was a (potentially optional) frame showing the previous slide as well rather than just the currently presented one.

Alternatively the attendee viewer could allow switching between slides (probably wise to limit it to already presented ones to not ruin any surprise) with ◀️ and ▶️ buttons and a button to bring you back to the "live" view with the current slide.

[codyzu]

Thanks for this great idea!

A colleague of mine questioned if the slide on the attendee view is useful or if it is just a distraction for what is happen is on the stage.

What are your thoughts?

Another idea was to collapse the slide view for attendees by default, but allow it to be expanded if someone really wants to see the slides. 🤔

[arminru]

When I opened the issue yesterday I was just attending your talk there and there I would've been fine without the slides actually.

For the talks on the mainstage with only three screens for the entire auditorium and particularly at presentations with smaller text on the slides I think they can still be quite helpful.

Hiding them by default but allowing to view slides n and n-1 when desired might be the best compromise.