You cannot modify the Subaward files already uploaded to KC from the View Form preview window.  As with all uploaded files in KC, the document is presented in a separate browser window as a PDF file. While this subaward document may appear to be a fully functioning PDF fill-able form, any changes you make will NOT be saved to your file already in KC!   To make updates to the Subaward budget file or its Justification, return to the original Adobe Subaward file to make and save changes, and then re-upload that file to Coeus.