How to add calendar for account that is already added to phone?

When I added my email accounts, I turn off sync calendar so as not to mess things up.

Now that I have a grip on how things are working I'd like to enable calendar sync on one account.

I don't see any option or setting to enable calendar sync on the installed account.

It is a Yahoo account if that matters.

Can this done?

"Add" it again (don't delete it in the first place)

Thanks. Re-adding the account did indeed work. I simply unchecked email and contacts this time around.