Yes, you can replace your existing submission form via your account online. In order to do so, please go to Upload submissions and select the relevant location and practice area from the drop-down menu on the page. Then click on Upload new document button and confirm that you wish to overwrite the existing form for this section.
Once you have selected the file, please then click on the submit button.
You should
always inform the relevant researcher or editor that you have made a change to
your submission, especially if the change involves anything regarding
confidentiality or non-publishable information.