We recently purchased electrical schematic standard 2018 (sp2) after a trial using professional 2016 (unknown sp). After unarchiving the environment from the trial, I found the add/remove wire label option to be grayed out. Wire labels added in the trial are still there, and I can add/remove wire and cable marks, but wire and equipotential labels are not working for either the unarchived project or new projects. Is this not a feature in standard?