Senior BIM Consultant
Create a Sub-Category for each building storey (e.g. Façade Lines L1) either in the project (if they are live there) or in the relevant Family file. This allows wider control via View Templates for all views where the lines occur.
Alternatively You can draw Detail Lines, select them, right click, then Override Graphics in View’ – ‘By Element’ and specify the ‘Weight’. This method requires that you do this override manually for every view they appear in.