I need help with quite a few things with hatching my four eggs.

[Ambray]

I'm not in charge of the feed but, eggs layer pellets, ground up corn, mealworms, sun flower seeds/kernels, and veggies every now and then. I'm helping to raise them with my mother so some things aren't up to me but should I start giving them cuddle bone (I heard that was good for calcium) or something else like oyster shells.

 

[Fishkeeper]

Chickens should always have oyster shells available, and a separate dish of grit. If they're on coarse dirt, the grit isn't needed, but oyster shells always are in laying hens. If you buy the oyster shells and just keep a dish out there, I doubt whoever's feeding them will mind.
As long as most of their diet is the egg layer pellets, that should be a decent diet. I might suggest cutting out the corn. Treats should be 10% or less of the diet.

 

[ChickNanny13]

Cute out the corn, not necessary and no nutritional value except in the winter for those in freezing climate. Calibrate the incubator's temp & humidity prior to putting it into operation, should run it at least a week to make sure all's well and you understand the operation. Read:

by Sally Sunshine in the article section