You can create an expense account in your Charts of Accounts if you meant by adding a vendor category account and then add it on your vendor's transaction. You can also add an item if you meant by an item charge. Then can make it as a memorized transaction so that you can pull up the same template.
Here's how to create an account.
In your QuickBooks Desktop company, follow this keystroke to open Chart of Accounts: Ctrl + A.
Click on the Account button below the page and choose New.