Plastic wrap over egg tub?

[Freakie_frog]

And you vent yours by lifting up a corner of the plastic wrap and leaving the tub in the incubator? Or do you take the plastic wrap completely off and put the lid back on and put it back in the incubator then in 10-15 mins come back and put new plastic wrap back on?
Very sorry for making you have to go on a long drawn out explanation about this but I just want to make sure I completely understand what is going on!!! I appreciate all the help

I pull the whole box out take the plastic wrap off and the whole box is open..

Now understand I don't do this for the sole purpose of air exchange that is a byproduct of my OCD candling problem. Some people don't vent their boxes at all.