Unfortunately, this cannot be updated via registration. To request an update to the name and/or gender on your student record, you’ll need to complete the name/gender update request form. As part of the form, you’ll be asked to provide evidence that supports the update(s) being requested. Your name will then be updated on your record.
If you identify as trans or gender non-conforming, you can request an update to your name and/or gender without needing to provide evidence.
Full details and the form to complete can be found here.