thank you for the quick response. I don't want to remove parent slug. Please see images below. In general settings on the main page I can type in "unique url". This field will be filled automatically if not set manually, then using page title. No matter what you tipe in, these infos will be shown with every site link except this main page (see images below).
Is it possible to disable this feature so that the urls of the site only use post name for generating the page links, as set by default on wordpress?
Thanks for your help,