Just “RTFM” is rude when the question is not obvious.
But look carefully at the second part of miqlas reply:
open the preferences panel (magic happens there!), and you will get answer for 90% of your questions
There is actually an answer here. So it was not just RTFM. This is an important difference.
when someone does not take the 10 seconds it requires to find this, why should we spend the time for them? Asking a question without spendin a few seconds doing your own research is also not nice, and can ruin the community just as well as people just replying RTFM without any extra info would.
Anyway, there was a misunderstanding as the original poster is actually looking for keyboard shortcuts. These should also be mentionned in the user guide. And let’s see, indeed they are:
Not all the needs are covered, and a shortcut for changing font size would indeed be nice (I use this a lot on linux and have it on control + mousewheel there)
As for a Norton-like utility, you may try BeFAR: https://github.com/HaikuArchives/BeFAR