I appreciate you for joining the thread, @ASEIFL.

You can individually pay the bills (or invoices from your vendor) and tick the Print later option. Then, batch-print the bill payment checks to print individual checks for each vendor's bills. I can guide you through the process.

First, pay each bill and tick the Print later option. Here's how:

1. Go to the +New button in your QuickBooks Online (QBO) account.
2. Select Filters. Then, choose the intended vendor from the Payee drop-down list, and click Apply.
3. Place a checkmark for a single bill only.
4. Review the Payment date to match the date when the payment cleared in your bank.
5. Tick the Print later box.
   
6. Hit Save from the drop-down arrow on the bottom right corner of the pay bills window.
7. Repeat steps 3 to 5 for the rest of the bills.
8. Select Save and close when on your last bill.

You can batch-print the payment checks once done. Here are the steps: 

1. Go to the +New button.
2. Select Print checks.
3. Select the correct bank account.
4. Choose Bill payment (check). Then, select Payee from the Sort by drop-down menu.
5. Tick the boxes for the checks you intend to print.
6. (Optional) Select Print setup to choose either Voucher or Standard check.
7. When done, click on Preview and print. Then, hit Print.

If you encounter challenges with print alignment and other concerns with the checks' printed form, let me add these articles as a troubleshooting guide: 

• Configure your print settings for printing checks in QuickBooks Online
• Fix print alignment for paychecks

Keep us posted if there are details you'd like to add or need further assistance with your concern about printing checks in QBO. We're committed to offering ongoing support.