Well done! i just did the same test using the wrong Com port and you only see the 3D printer options. This in one for the FAQ’s in using the correct COM port.
As a suggestion start with B&W etches, much quicker and gives you a good practice with settings. Greyscale is a learning curve and each project can take hours to print.
For example. This poor photo of a grey-scale image 50x62mm took 4.5hours. The clarity is almost photo like. Don’t test on 80gsm paper, you tend to burn holes through it. I have been testing with 150gsm paper(card). I am yet to try wood, leather, acrylic etc.
Many B&W can take as little as 10 min, depending on detail; most of my trials have been around 30mins