I'm after what I thought was a really basic function but can't find out how to do it.
Using a master page template, I want to have an auto height text box bottom border set the top border of objects (such as text boxes) underneath it.
Thus as text grows or shrinks, items underneath reposition automatically.
Note: Using IndesignCC
The Auto-Size feature in Object > Text Frame Options works great, but it only works on single text frames. It will not work when you have linked a text frame to another text frame. And I also don't think it will work the way you wish with text frames on top of text frames.
It works well for single frames like sidebars or captions.