How to organize an item in the Banking section as an Expense

Hello,

I'm new to QBO and trying to understand how to categorize things a little better.

It seems that categories in the Banking section are different than those in the Expenses section. I used my checking to pay contractors, but I don't see a category for this under Banking, and I'm not sure whether it's a good practice to create a new category for this, since it already exists elsewhere.