Depending on the settings of the Project, you will be able to add, edit, delete, and save Objects, Categories, and Processes. Managing these various elements follows the same logic.
To add an element, click 'Add [name of element]'.
To edit an element, click the blue 'edit' button at the relevant element.
To delete an element, click the red 'del' button at the relevant element.
Click 'Save [name of element]' to save an element.