Hi Karen. I don't use my steamer for potatoes in the microwave. Just poke a few holes on the potato and put it in for 4-5 minutes. Then immediately wrap it in foil and let it rest for 5 minutes.
Times stated are average. Your times may vary based on microwave power and potato size.
"If you want to make an apple pie from scratch, you must first create the universe." -Carl Sagan