Hello @simgiallorosso,
I moved your question into a separate thread from the original one here: Is OJS GDPR compliant? - #62 by leonardo.mancini - it might be better to deal with this as a separate issue, since that thread is several years old. Can you elaborate on what specific version of OJS you’re using (e.g. 3.3.0-8) where you’re trying to make this change?
-Roger
PKP Team