If you haven’t seen the getting started guide, there is a section on how to design for the laser that can probably answer a lot of questions that you might have.
https://support.glowforge.com/hc/en-us/sections/360005105894-Lets-get-printing-
In addition I have a post that you might find interesting, reading through this might give you a real jumpstart on GF stuff.
I know, reading isn’t much fun when you just want to make stuff, but I promise that this is all good stuff and the time you spend reading now will pay you back for years. 
Welcome to the forum!