You must be an Organisation Admin to manage your organisation’s Project Forms. Ask your Admin to manage your organisation’s roles and make you an admin.
Steps:
Launch the My Apps ribbon from the top menu
Select the Project Forms button in the ribbon
You arrive on the Manage Project Forms page
Above the tab
The table displays
Column 1: the name of the Project Form
Column 2: names of projects within your organisation that were created using that Project Form
Column 3: Tools - a dropdown menu that gives you more options