Would it be possible to create an overall dimension string from an existing dimension string?
In this example dynamo is measuring from the middle of the walls when I need it to measure from the outside of the wall. This might change depending on the application so that’s why I’m thinking that if I dimension the first string then dynamo can just give me an overall dimension based on that.
You can get wall core references (there’s a node for it, might be in a custom package, GeniusLoci maybe from memory?), and use those for dimensioning, you can then determine which references are the outer extremities and use those to make a second dimension for the overall dim. I’ve not done this for walls, but have used similar logic to get panel dims as well as overall dims for curtain wall elevations.