Originally Posted by
321XLR
My understanding is once Speed is selected (pulled), the speed value set becomes the #1 priority over everything else. Open Climb will continue (ignoring constraints) but the priority is the speed. "How" it does that, pitch/thrust etc, how much OF pitch and thrust, etc, may indeed be a software thing.
With OP CLB on FMA once thrust goes past 95%N1 all speed changes (decrease or increase) will be by pitch change. Thrust will remain locked at THR CLB.