How can I add new categories? 

Log in at https://www.wlw.de/lyc/company-login and click on "edit company profile." Next, select the menu item "categories." To delete a category, use the "recycle bin icon" for the that category. To edit a category, complete the website links or different contact persons or create a link to an existing product or service, by using the "editing button." Note: if you want to edit or delete the categories, please do not delete all categories, otherwise your profile will be offline.