a variation - once you have the "wires" laid out, ctrl-a to select all lines - examine the length in your entity info, then create a component with the name like "elec_wire_256" for 256 inches (or whatever your base measure is. round up 😄 then when you run the report the wire components are listed in a grouping and the various lengths. i also include wire type/size such as "bx12-3" or "nm14-2", etc as part of the name... so "elec_wire_" + "bx12-3_" + "256" then i can readily parse it into a spreadsheet by splitting on "_" underscore.