Customers (and staff) are able to add 'Pins' to graphs. This is useful for customers to add notes that staff see, for example you can add a pin saying 'Plugged router into the test socket'. The note will be shown when you hover your mouse over the pin.
[[File:Clueless-adding-pin.png|none|frame|Adding a pin to a graph]]
Pins are added on the Usage page. Simply click on the graph where you'd like to add a pin and enter in the details.