Thanks Jason. I would like to change the hatch correctly - someone said something about using a flat head screwdriver but I am unsure. Perhaps I'll move other things around but I'm trying to make the most perfectly accurate tank model here. Overall, I was happy with the result and focused on trying to bring the depth and detail out as much as possible. You can't find a 1/16th static model for the price and may well buy another down the road.