How to configure libreoffice items in the context menu ?

Hello! After installing libreoffice in kde neon plasma 6, the items in the context menu are not displayed. How can I configure them?
Thank you!

Hello!

Welcome to KDE Plasma, firstly!
To be honest, you are asking about Libreoffice (which is not developed by most KDE contributors) in a KDE forum? I think you would have been better at Ask Libreoffice.
Most KDE users would use KDE’s office suite, Calligra. But I also use LibreOffice, so I can hint you to go to the “Tools” menu in the menu bar and then click on “Customize”. There you will have a tab “Context Menus”, which is a pretty powerful context menu editor.