You can add annotation to your Harness in Arcadia.
You will now add a Green Tape datum to the Harness.
Fig 46.1 The Harness Window
Step 1
Click on the Insert Tape command. Click to add the tape onto the harness and a node will automatically be added with the tape attached. Stretch out the tape to the desired size.
Use the Inspect command to click on the Tape Control Node.
Fig 46.2 Control node locatation
Set the Fill value to GREEN. Click Submit.
You will now add some annotation text to your Harness.
Click on the Leader command (Under Drawing) and draw an arrow for the Green Tape Datum as shown. start by left clicking on the top of the tape then right click when to complete and add the information.
Enter the Text to read Green Tape Datum. Set the Text Size to 2.0 (under Advance Parent Options) and click Submit.
command. Click to add the tape onto the harness and a node will automatically be added with the tape attached. Stretch out the tape to the desired size.
command to click on the Tape Control Node. 
command (Under Drawing) and draw an arrow for the Green Tape Datum as shown. start by left clicking on the top of the tape then right click when to complete and add the information.