Hi Giovanni,
You can use custom css to hide the custom filter by applying it into your custom css file.
Example:

#es .es-dashboard .es-sidebar [data-type="custom-filters"] {

  display: none;

}

Thanks a lot for quick response and courtesy

Hi there,

You are most welcome. Glad to hear that your issue has been resolved now.

As a gentle reminder, kindly start a new thread if you have any other issue in the future so it will be easier for us to manage your inquiry. I will lock and mark this thread as resolved.