I'm trying to edit vertices in a polyline in ArcGIS DesktopArcMap 10.8.1, and am finding it maddeningly difficult to select only one vertex at a time. I pretty much never want to select multiple vertices but somehow that's what happens a large percentage of the time, making it very difficult to do my work. I saw this question was asked several years ago with no good solution offered, but I'm still ever hopeful: does anyone know how to turn off selection of multiple vertices?