I turn off ALL defined dimension / extension options in the wall definition template, because it allows me to toggle my dimension / extension options at the drawing level as I am drawing the project.
I do a lot of remodel projects and dimension to wall surface (edge), because that is how they are measured in the field. When adding new walls for additions however, I prefer to dimension to the outside of stud,
because that is how the builder will measure.
It is a pain to always have to go to the wall definition to change this. If you set your wall definitions to "none", you can just to to the "dimension options" or "extension options" and change how you want the walls to dimension.
This allows you to easily combine multiple ways to dimension and pull extension lines.