If this is even possible, TechSmith will have to "open up" the format and provide some guidance as to exactly what they are doing to create these assets.
In looking at them after placing on the Timeline, these are grouped elements. I'm not sure if TechSmith is using some special tool they have built in house or if it's just all in how they choose to group things and likely combine with some XML file or something.
I'm not sure I'd hold my breath. But it never hurts to suggest things!