Rebar schedule with image dimensions

Is there any way to add real dimensions to rebar image instead of using A, B, … ? I see its possible to attach only image files, so how can I get dimensions from my rebar and match it in image?

I have extracted rebar parameters from current view but how to create table and fill it? Am I on the right way? Im almost completly new to dynamo…
Rebar.dyn (70.0 KB)