Columcille is a business-based child theme of Qohelet. It therefore operates with all the functionality of its parent theme, including the ability to have new Customizer panels produced. Consequently, such panels have been created.
The theme was produced for my son's business, Adam Taylor ESL Tuition, based in Waterford, Ireland. It was created after a good deal of research into the materials needed for a language training website.
As with my Wordpress projects, the code is being stored in GitHub. If you want to try helping, you would be very welcome, but please fork the code, so that we can all be clear what is going on. Qohelet will be automatically updated, if you also install the Github Updater plugin.