Can someone please tell me if its possible to use these products and what setting to put my machine on
You can’t etch them. CO2 lasers aren’t the right tool. But you can mark them with a variety of techniques ranging from Cermark to wet paper towels. The resulting marking can range from solid dark black that can’t be scraped off to lesser dark markings.
Things you might find helpful:
The Glowforge team recommends working through your first prints by following along with the examples shown here to learn where everything is:
They have also recently added instructions with video on using the Manual settings here:
Working with Manual Settings
And there are methods for Enhancing your Photo Engraves and Cutting Out a Shape as well.
(You can click on the topic headers in the left-hand column for even more information.)
That particular page is also handy if you have any p…
Also, searching the forum will get you far: