This is a flexible, legally informed codicil template that amends an existing last will and testament, allowing a testator to clearly identify the original document, specify changes or additions, and keep all other provisions intact while outlining witnessing and storage requirements. Its features include fillable fields, editable text, the ability to add or replace beneficiaries or bequests, attach notes or images, insert attestation and witness sections, support for electronic or uploaded signatures, easy sharing by email or URL, and options to download, print, or securely store in the cloud; it solves problems such as the need to update dispositions after life events, avoid rewriting the entire will, reduce ambiguity or disputes in probate, and provide clear guidance for estate planning for individuals, couples, and families.