To change the name, please replace all \USER_NAME\ (\COMPANY_NAME\ in Projetex) variables in templates with your name, this way your name will be hardcoded into the templates. You can edit templates by selecting them individually in the "Business/Corporate Settings  >> Templates" window.

Alternatively, you can contact Support at https://aithelp.com/Tickets/Submit and request to change your Registration name. After the change is confirmed, uninstall and re-install TO3000 to update the name.