J.P. Instruments EDM 930 Primary Pilots Guide - Manual (Page 30)

For Your Safe Flight Page 25
Lean Find-Activation: When a 15° EGT rise occurs, LeanFind
activates (indicated by a cylinder I.D. box flashing over the number of
the hottest EGT). Remember: The LeanFind mode is not active until
a cylinder I.D. box is flashing. To show the progress of the leaning
process, the EDM now displays the hottest EGT in the left side of the
digital display and the fuel flow in the right side. This information
allows you to observe the EGT behavior throughout the leaning process.