As mentioned elsewhere in the guide, you have two options available to you for accessing Forms, 'Forms & Checklists' and 'Open Forms & Checklists'. Both menu options work in exactly the same way however the 'Open Forms & Checklists' menu will only show open forms. For the purposes of this guide we will use 'Forms & Checklists' however it will apply to both menu items.
Until you are more familiar with the system MMV would recommend you use 'Forms & Checklists' to view forms as it will contain all forms on the portal, ensuring none are missed.
Pro Tip: as you use the system 'Open Forms & Checklists' becomes a very valuable tool to easily see which critical forms, such as incidents and defects, need action.
To edit a form locate the form you want to edit by following the steps above and then click the 'Edit' icon.
You will then be able to edit the form and update the necessary fields. Once done click 'Submit and Check In'.