Wish List: Slide Preview + Audio Monitor + Output Default

[theeruditefrog]

I am mostly using OBS to be a presentation tool.

Could there be some way to preview the next slide in the Slideshow (as I prefer this to screen capturing powerpoint)
Also - drag and drop multiple slides into slide show?

And - could there be a way to default the Audio setting to be Monitor + Output? as this is our normal use.