use existing custom menue as a full width sub-menue with pictures in a row

Hi @enfold!
another Menue-Question to the full width sub-menue: https://kosmetikstudio-nuernberg-jescava.de/portfolio-item/mezotix-unreine-grossporige-vernarbte-haut-oder-pigmentflecken-entfernen/
I use “Build simple custom menue” but would like to “use existing menue”. But again like before I dont get the 4 menuepictures in one row: https://kosmetikstudio-nuernberg-jescava.de/portfolio-item/tixel/

Thanks again for your feedback
Have a nice day
Best regards
Michael F