Hello I am having the same issue glad to see that someone else has this question.
I agree with you that there is not enough Documentation explanation with certain issues.
I do have a question to add about the stages and the blocks. because the fact that add a 2nd stage but cant organize the sprites for that stage via “set “sprites’s” x/y to #” is really confusing.
I also don’t know how to add/edit sprites for stage 2 because in the drop down menu on the left it shows that there are sprites on stage 2, when i cant see them.
I urge you to use polite words. The community are all users and we have not committed to answer all questions.
It is much better to be appreciative of what you are getting here for free than just complaining about something that we are not responsible to provide to you.