Thanks for getting back, mestrauss.

I'll ensure to offer additional assistance wherein you can pay one vendor with multiple bills. 

In QuickBooks Online, you can pay multiple bills at once. However, there is a fee associated with each bill. Since you want to pay all of your bills with a single ACH fee, you may consider looking for a third-party application that has the functionality to integrate with QuickBooks.

Let me guide you through the steps.

1. Navigate the Expenses menu.
2. Choose the Bills tab.
3. Select the bills you want to pay.
4. Then, click Schedule payments.

I've attached screenshot for your visual reference:

Furthermore, to effectively monitor all the payments made to your vendors within a specific date range, I suggest reading the following resources: Run a report with vendor totals.

Let me know in the comment below if you require further assistance managing bills or related matters. I am here to support you at any time.