Hello there, borr.

Currently, generating a graph to illustrate your total invoices associated with a project is unavailable. However, I have the steps to get the information you need. Let me guide you how.

1. Go to the Projects menu.
2. Select the appropriate project.
3. Choose the Transactions tab.
4. Click the Filter drop-down.
5. Select All Invoices as the Type.
6. Set the date range.
7. Click Apply.

Once done, view the total amounts in the Total column. See the screenshot below that shows the third to seventh steps.

I can see how beneficial it is to view your project's total invoices through a graph. Since we're always looking for ways we can make QuickBooks better for all users, rest assured that I'll forward your feedback to our Product Development Team. They can consider this for future releases. 

You can use projects to quickly calculate your project income and costs. To learn more about creating one, adding project income and expenses, kindly refer to this article for the detailed steps: Track income, costs, and profitability by project. It also contains information on how to calculate your payroll hourly time cost outside the system.

Please let me know if you have other concerns. I'm just around to help.