I want to add a tab to an edit page in the admin via API. I found a code from @kixe here https://processwire.com/talk/topic/15015-tabs-in-module-config-page/?do=findComment&comment=134624 that basically does this, but I can´t get it to work correctly (see screenshot).
As you can see the Tab has a weird name and the submit button appears before the fieldset. Also the tab should appear as second, directly after "Inhalt (content)".
Maybe I did something wrong when adding the tab to th