Hi Juan,
Most likely if you click on “Hide Element” on the attached screen you will receive the following info message:
It is not possible to hide all elements in this context.
Try to hide the parent element instead.
To avoid this message you just need to click on “Select Parent” - on this same screen - before clicking on “Hide Element”.
Based on the message “Changes will be applied for all users” on the top of screen I assume you already know how to work with adaptation.
Regards,
Cristiano Rosa