Hello. Click on the BLOG tab on top of page and scroll down. There is a Blog entitled, "Hooping and Un-Hooping". It goes over the steps for each scenario.
Simply, the stabilizer gets hooped and your project sits on top of the stabilizer, but not in the hoop. The item stays in place by a light spray of 505 Temporary Adhesive (washes out) or adhesive stabilizer. I have even pinned (straight pins) the item down to the stabilizer far enough away from the needle action.
Some fabrics are extremely heavy to hoop; terry cloth, fleece. Some fabrics leave the hoop crease and spoils the finished project (faux leather comes to mind). Some items are difficult to hoop because of their particular shape. Once you get the hang of it, you may find yourself using un-hoop method more and more.
Have fun with your new hobby!
Joan/NJ