Double-click on the desired text passage to add a comment and click on Add comment.
Enter your comment and save it by clicking on the tick.
Existing comments are displayed with a yellow text symbol.
Right-click on the desired location for new text and click on Add text.
Select the colour of the text, font size and location and then enter the text.
Click on Draw in the tool selection at the top left and sign with the pen at the desired position.
