JLCooper Eclipse Ethernet 2.6 for OSX - Manual (Page 57)

Display Text Tab
If you check the Display Custom Text box or type into the text box below it and hit the
ENTER key, the text you type will be shown on the selected display line whenever the
target application is in front.
Un-checking the Display Custom Text box will delete any function assigned to the
currently selected display line.
Eclipse Ethernet Software
54