Content creation

When using the Drag and Drop module in an Interactive Video, is it possible to make the background transparent when there is no uploaded image? I ask because my video already has the images needed for the Drag and Drop activity. The video at http://www.consol.ca/Capture_03.mp4 details this issue.

Hi

I have the same 3 possible solutions and different sentences that always fit just one of the solutions. I've made a single choice set, but the randomized solutions are confusing. Is it possible to have the solutions always in the same order?
Or can you think of a better way to create this excercise?

For example: (fat = correct solution)

1. „Sport ist mein Lieblingsfach, weil ich gut darin bin.“
Kontroll-Aussage
Wertbezogene Aussage
Kontroll- und wertbezogene Aussage

I've noticed a funny thing: I can add a back button to a static seen in the tour, but there is no function to "display back button" for the 360 scenes. Am I missing something? The display back button is clearly not on the 360 image page, but maybe it's somewhere else? If not, I think this is a feature that should be added! See images.