Actually, once I found out how it works, it is a matter of minutes. I need some time, understanding the settings in Google earth to have the right values of lat. and long. Once I found this out, I have to discover where the images are saved to click on them and then save the images. As said, once I found that out the process is very simple. Click on each "landmark" and save naming it. In the tutorial they said it took about 28 images. I actually get 41 images plus the sky Vilmer guided me to. Once saved the images, stitching is not an issue, because there are enough controlpoints and no parallax problems. So the process is very easy and relatively fast. Now that Im an "expert" ( a joke) I will be happy if I could help you with anything you should need, once you start to experiment. Anyway Im sure you will find it out as well as I did.
Good luck and regards, Martin