#1 What all is included? Can I steam" hard boiled" eggs?
There is a flat tray for steaming and two little trays for thawing. There is also a egg tray to make hard boiled eggs. I think you could make also soft boiled eggs, just set it on a lower setting
#2 Is there supposed to be a silver heating tray because mine did not come with one?
You should have received two heating trays. My trays were white and green. I returned my steamer because it failed in less than 90 days.