Step 1

Add a text label by selecting "Add label" > "RMS gateway":

Step 2

The label appears on the background.

Step 3

Using the mouse, click on the measuring point box and drag and drop the box to the desired location.

Step 4

Delete: click on "Delete" to delete the text label.

Step 5

Apply for all labels: click on "Apply for all labels" to apply the settings for all labels.