Forms within an organisation often go through continuous improvement and iteration. To facilitate this, form authors can edit forms using the same drag-and-drop interface used to create the form. In the background, Team Forms utilizes SharePoints version history to maintain an accurate timeline of all changes made in accordance with your organisation's retention policy.
To start editing a form simply hover over the form your wish to modify and click the "Open Builder" option in the menu.
You must have an Author role in the team in order to edit forms.