1. From the Banks page, click Edit account details
2. Select the Payments tab
3. Select the Computer Check row and click Edit Payment Options
4. Select Electronic Signature 1 or Electronic Signature 2 
5. Change the drop down to Print signature based on amount
6. Enter a starting amount in the From column
7. Enter an ending amount in the To column
8. Select the desired signature for this amount range

You may repeat these steps for another payment amount range or you may encompass all checks over a certain amount in the first row.

Keep in mind that if your check amount exceeds the 'To' amount, the signature will not be required even though it is more than the 'From' amount.