Hi there,
as mentioned on G+ comment :

Would be nice to add a right-side slide to any top-down slides. When trying to do that now, the right-side slide is always created on the first top-down slide. But I need it just for couple of slides in the middle.

Let's say I have top-down slides with texts and just for some of those I need to have right-side slide with screenshots. That's the intension.

Good luck, keep up the great work !