G29 T ; print current mesh

G29 L0 T ; load 0

G29 L1 T ; load 1

G29 L2 T ; load 2

G29 L3 T ; load 3

G29 P1 T ; auto probe - build mesh

G29 P2 B T ; manual probe - not needed? 

G29 P3 T ; extrapolate - repeat until complete

G29 J T; 3 point tilt

G29 F2 ; fade hieight 2mm