@tpinozark hasn’t been on the forum in 6mos +/- so you may not get an answer.
What is the leatherette made of? If the Leatherette is made of anything with pvc or vinyl in it, you 100% cannot cut it in a laser - it will make a gas that will eat the enterior of your machine.
*per their page it’s laser safe - yay!
Actual leather cuts beautifully in the 
and there are default settings for it. Start there and then adjust your settings if you’re not happy. If you want to test a bunch of settings at once, try this: