Let's imagine you are playing Terran vs Protoss. You have around 7-9 rax, few with reactors, others with tech labs. Your opponent has army that consists mainly of zealots and high templars...
and you need to build you stuff right now. What is the best way to do that?
Option A: press 'D' 5-6 times, and after that 'A' 5-6 times? This way you will receive required amount of marines + marauders. But (at least for me) that takes some time.
Option B: press 'D' for few seconds and after that 'A' for the same time. This way you will receive pretty similar amount of units and it will be quicker, but that won't be as precise as with option A.
What is the best way to order troops when you have A LOT of buildings? Should I go with option "B" or practice "A" but make it quicker?
Do you see any other better way?
P.S. I'm interested in terran race suggestions, but others would be useful too.