I had been wondering myself it would be possible to use transitions from other programs in Shotcut. I find the transitions in Shotcut a bit limited, they all base on the same theme, fading one video over another. In other editors it is possible e.g. to move one video to the side with the new video coming in. I could not find such in Shotcut. But maybe it just me being less experienced.
I have also downloaded the 36 GL Transitions.zip, now what do I do with it?