I lost my first couple of buttons too... don't let it ruin your day. You still have a lot of little babies about to pop out, and you'll be busy. You can crack the incubator just a little bit to add water through a tube or straw, but leave them in there until they're completely dry, ok? Do you have your brooder set up and warm? Water with marbles so they don't drown? Food sprinkled all over so they can find it?
Get ready, cuz here they come!