If you're going to use a piece of software, you really do yourself and those relying on your work a disservice if you don't at least learn the basics. The easiest way to do what you want is to learn those basics.
I have 50 million pieces of software to learn.
It seems to me that, in this case at least, you're not even interested in learning the basics, which would only take a short while for what you say you want to do.
Formatting content as centered or left-aligned is hardly rocket science (and requires way less effort than treating Word as a typewriter); neither is copying & pasting that content multiple times.