The indirect answer, it doesnt matter if you are in capital or maintenence. You can sign up for capital OT when the canvas comes around. But the foreman doing overtime arent gonna just pick all the new guys to do OT just because they are eager. They have a bunch or "usual suspects" that they work with alot. And when they have guys that they KNOW will work for them, the foremen can actually handpick workers from the canvas list.
It shouldnt go that way, but it does. You pineapples have to establish yourselves a bit as good workers before you just soak up the OT money. I apologize if i sound rude, but, you arent gonna get every piece you write your name on fresh outta school. They got shit to do, and a limited time to do it. And they got their "go-to" guys and their "A-team". Just learn the job first, show that you know what you are doing, and that you arent afraid to work, and they will be talkin to you on the side like, "yo im doin such and such overtime this weekend, if you want it, let me know."
You will be able to do morning and afternoon OT as well on the weekends. You will understand better when you start seeing the canvases. It seems more complicated than it really is lol