We rolled it out as a feature in the latest versions of the theme.
I believe now is possible with Edwiser RemUI versions 3.5.11, 3.6.8, 3.7.7 & 3.8.0.
There is a setting part of Edwiser RemUI which could be enabled or disabled for this purpose.
Simply follow this path Site Administration > Appearance > Themes > Edwiser RemUI > General Settings > Checkbox to enable "Course Edit Button" at the bottom of the page