I have added some entries to this array, they should appear as new options in a drop-down presented when adding a configuration in the extension. Instead of the value I see the key in the select element's title and label:
I am guessing that I need to re-initialise something, I have cleared cache which does not work but probably I need to reinstall the extension? But how to do that? When I click on the Extension tab in the admin it simply defaults to another plugin installed.
Should I not see a list of extensions and be able to disable or choose which to install?