Basically I setup a couple of dynamic text layers in multiple composition where the source text refer to a main master comp. The problem is quite simple, when the first text is very long and is cropped in 2 line I can’t find a way to automatically adjust the position of the second one. I attach an image for better understanding.
Pin the anchor point of the second text layer to the top using sourceRectAtTime. Then using sourceRectAtTime in the position parameter you can calculate the height of the first text layer and in essence pin the second text layer to the bottom edge of the first one. There are many examples in this forum just search for sourceRectAtTime. Evan Abrams and Jake in Motion have videos on this topic as well.