Originally Posted by
ironbutt57
..after it starts to climb, select any speed change you desire...
Or more technically correct - wait until N1 reaches 95% as vllas posted #16
"when engine N1 reaches 95% N1CLB mode, AP/FD switches to SPEED/MACH
control law, whereas AT switches to the THRUST mode
¬Throughout this time the FMA displays THR CLB for AT and OP CLB for
AP/FD"