Editing an Objective is easily accomplished following the the steps listed below.
Expand the Objectives: Objectives are displayed in a collapsed detail view initially.
Click the Green "Save" button as indicated once the text editing is complete. Alternatively, you can cancel out of this action by click the Red "Cancel" button.
The screen refreshes and reflects the change.
Since the process of adding these at a Session level is identical to how it is accomplished at the Course level, please refer to the following links for reference.