These instructions are relevant if there is an existing form that you want to duplicate.
Within the preference menu, go to formbuilder.
You will see there is an icon with 3 horizontal dots on the right hand side of the form. If you cannot see these, you may need to clear your cache on Chrome.
Click on this icon
Click on DUPLICATE FORM
Rename the new form
Open this draft form and edit as required
UPDATE
Then GO LIVE