You can use folders to organize pages that belong to the same category. If you add a page (for example, the page stadtlandflux) to a folder (for example, the folder improgramm), this will also be visible in the URL structure:
https://www.fluxfm.de/improgramm/stadtlandflux
Create a folder
Open the root overview of your website. Click with the right mouse button on Home or another page and then on + New child page to add a redirect.
Now enter a name for your new folder under Path. This name is in the URL with a / after the main domain (e.g. www.fluxfm.de/improgramm). Select the option Folder under Type.
Then click on the Create button at the bottom right.
On the right side of the folder overview page, under Setup your page here... you can schedule the activation of the folder and change the original URL. Under Where does my page sit? you can see where your folder is located in the web page/app layout.
Delete folder
If you want to delete a folder, click on the three-dot menu in the upper right corner and then on Delete Page. Confirm the operation by clicking Delete.