Get a diaper on the little boys as quickly as possible, or you will be wiping down the inside of the isolette frequently.....
Just because you position them one way, don't believe that they will stay like that ten minutes later. Some you think will be crawling within days........
Frequently will poop when bottom wiped with warm wash cloth, when you least expect it.....
Make sure that the skin probe for the warmer stays uncovered by the diaper, or it will cause temps too high or too low in your baby.
These are what come to my mind right away, I am sure that others will follow.
Good luck to you..............