Cinta, those look GREAT! It will be a few years before I have an opinion about what most of these c/s plants usually do or want to do. Had very few of them before the past couple years, which I now think is ridiculous. Why did it take so long for me to realize what cool plants these are???! Probably because it took so long for me to get away from being a serial overwaterer of plants. Soon, I'll have more of those than the more traditional leafy tropical house plants.
BUT, I'm seeing the same thing on the blue-ish Kal as what you've seen. Just wants to lean and take root, and I also recently cut a bunch of the stems (many more than just that pic) because I figure they'll make more tops if cut, which they are starting to do. I'm obsessed with creating patches of it, some of my fav leaves! Look at the color on these out in the sun. I know they're all the same plant because I started with 1 that had a single stem.
That's K. fedtschenkoi, same as yours?
And interesting that Angela would put those pics up right then. I was going to ask if any of the branches of the Rhody you want to prop will reach the ground? If so, you could lay a rock/brick on 'em and then forget for a while. That's about the only kind of layering I have patience for. If nothing will bend that far, maybe bending to the surface of a pot, a lot like Angela's pics, would be possible?
Angela, those look really nice!