User's Manual Part 2

MEGAM.O.L.E.® Help System Guide 156
5.4.4.2.6. Temperature (Y) Reference Lines
Temperature (Y) Reference lines are colored horizontal lines that are positioned within
the Temperature (Y) scale in the graph. Temperature (Y) Reference lines can be added
to the Data Graph using the Software>Menus>Profile>Set Temperature (Y)
Reference Lines command in the Profile menu.