This is my first time posting here so if this is the incorrect place for this type of post please point me in the right direction.
I am trying to add a variable constraint to a deck template and am having issues. I seem to be able to control the Start Distance by choosing a "From" pierline and relative location, but i cannot find a way to control the End Distance. It is just defaulting to the end of the unit. Am I missing something? See attached picture. Thanks in advance!