Martin Audio MLA User Manual page 210

MLA System
USER GUIDE
The Data Cursor is useful on graphs such as the frequency response as you can click on any point of the graph and see a value
for both x and y positions;-
You can continue to click on new positions on the graph to obtain readings for as long as the Data Cursor button is selected.
Insert Colorbar adds a reference bar to the graph;-
Insert Legend is a function to add a key to the graph but this has not been adopted in Display 2.1
MLA System User Guide V2.1
210