To access the complete historical records of all setpoints, click on the second button from the right located above the setpoint table.
Figure 1. View all history button
You will encounter a drawer containing timestamps for all setpoint modifications. You can click on each timestamp to access the details of the respective update. You also has the ability to revert any update if neccesary.
Figure 2. Change history drawer
To access the change history of a specific setpoint, click on the 'More' ⋮ button located at the end of that setpoint row, and then choose the third option from the dropdown list.
Figure 3. View change history of a single setpoint
Figure 4. Change history of a single setpoint