I would find it quite helpful if details ignored the Options -> Modeling Aids -> Construction planes setting and always behaved as if standard construction planes were selected when trying to restore a saved CPlane in a detail, as I find the current behavior a bit confusing. Currently, if I’m set to universal construction planes, and I make a detail active, then double click a saved CPlane, nothing happens in the detail, but the CPlanes in model space all change.
Thanks,
Sam