Hi! I'm looking to parent a text layer to the bottom of a paragraphed text layer so when the paragraph grows (more lines added) the parented text layer will keep its relative position at the bottom of the paragraph. Is this possible?
Providing the font size is consistent in your paragraph then you should be able to do it by parenting it to the first text layer and using the sourceTextAtTime expression to find the width and height of your paragraph and offset it accordingly.
Here is a tutorial for the sourceTextAtTime expression: