Would love the ability to set that to the default of my choice. 2 seconds is not useable for any event I've ever done. 5 seconds or 10 seconds would be much better. Thanks!

I'm not familiar with scripting. Would that be hands-off for me each time I create a new slideshow?

As it stands now, I can manually change the transition duration each time I add a new slideshow. It only takes a few seconds, it just becomes tedious to have to do this every time. It would be nice if there were a global setting I could change for the default.

I'm thinking also of how vmix "remembers" the last place you added photos, and that becomes the new default for the the next time you want to add photos. Maybe it could remember the last duration you set for slideshows and use that to start.