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 delete a form locate the form you want to delete by following the steps above and then click the 'Delete' icon. If you delete a form you will delete all history related to that form. MMV recommends you only delete forms in exceptional circumstances.