Hi Mohamed, 
It is always great to see a new face on our forum!
As you are new here, we strongly recommend you to check out our Getting Started Guides below 
Should you have any other questions regarding navigating on our forum, feel free to reach out to me at @albert.vu. If you have other questions about learning on Katalon Academy, or about the Katalon Certifications Program, then you can also reach out to @viet.nguyen.
Thanks & we look forward to seeing you around!
Albert