Please Point me in the right direction

Newbie, here
I finally got the exhaust vent set up on my Forge last night

Now I have a picture that I want to engrave/etch… but when I looked at the settings interface
I had no clue. It did not look as easy as upload an image and hit print.

Can someone please direct me to any video tutorials on how to do work with the settings
Thanks… Andrew

A couple of good starting places:

and of course, “The Matrix:”