How do I apply money from a "Scholarship Fund" (liability account) to satisfy the unpaid amounts on customer invoices for our online courses?

Thanks for dropping by, @catholicrevivalm.

I'd be delighted to help you satisfy the unpaid amounts on customer invoices in QuickBooks Online. 

Since you wanted the money from the Scholarship Fund to be applied to the unpaid invoices, I'd recommend consulting your accountant first so that your books will stand accurate.

Also, you can add an accountant to QuickBooks Online by following these steps:

1. Click the Gear icon in the upper-right corner and select Manage Users.
2. Go to the Accounting firms tab.
3. Enter the accountant's email address and click the Invite button.

Keep me posted (tag @Jovychris_A) if you need further assistance. I'm always here to help. Have a great weekend!