Hello barrymac,
Welcome to the QuickBooks Online community! It's great to have you join us. :)
It sounds like you're just getting started with setting up your account. The community is the perfect place to come for these kinds of how-tos. We have plenty of helpful articles, but if you're not seeing something you need, you're more than welcome to ask.
I've got an article that walks you through setting up accounts in the Chart of Accounts, which you can take a look at here: Add to or edit Chart of Accounts
I also recommend taking a look at our How It Works page to see other how-tos, videos, and tutorials for QuickBooks Online. I'm sure you'll be a pro in no time!
Enjoy the rest of your day.
