To edit your form templates, navigate to Form Editor page found on the left hand menu panel.
Select which form template you would like to edit.
Click on the Edit Form button
Once your form editor has opened, select a section to open it.
This will display each of the fields within that section.
To edit any of the details for a field, click the Edit button at the top left.
This will provide you with categories in the sidebar for different settings for the specific field.
Design & Layout: Change how the field looks on the generated PDF
Visibility: Change conditions for when/how the field becomes visible
Answers: Change default values / conditionals for any answers you supply when filling out a report
[Field] Options: Specific options for the type of field you are editing
Depending on the type of field, the main content area will also let you change the edit of dropdown options, visible text, etc.
Remember to click "Save Form" at the bottom right to save your form.