Go to the Project ribbon and click Project Settings. On the General Tab, click Advanced and then Labels. Scroll down to Welcome Header and Welcome Text. Make your changes there.
There seems to be a limit of 243 characters for the text. That will be on two lines with the first longer than the second.
See www.grainge.org for RoboHelp and Authoring information
Peter, thanks a lot for a prompt answer. It works!