Hi there, treasurer17.
Thanks for taking the time to reached out to us. Allow me to address your concern, so let me get this straightened out.
QuickBooks Online doesn't have an option to add a second line for pay type, you can either select hourly or salary for your employee (attached screenshot).
I can see how this feature would be beneficial to your business, I encourage you to send feedback directly to our Product Developer Team. They place a lot of value in the ideas provided by users, when deciding on how best to improve QuickBooks.
Here's how you can send feedback:
- Click the Gear Icon.
- Select Feedback.
- Click Next and choose Feedback under Category option.
- Select Save.
For additional reference, you can check this article on how to set up payroll.
Don't hesitate to leave a comment below if you have any other questions about QuickBooks Payroll. Have a good one.