Printing Specific Checks in Canada and U.S. 
The following additional check formats are available:
Check-stub-stub: The check is printed on the header of the two stubs.
Stub-check-stub: The check is printed in the middle, between the two stubs.
Stub-stub-check: The check is printed in the footer, following the two stubs.
Procedure
Defining Outgoing Payments to Vendors
From the SAP Business One Main Menu, choose
Administration 
Document Settings Per Document 
tab.In the Document field, choose Outgoing Payment.
Specify the maximum number of documents in a payment (the maximum number of invoices that can be closed in one outgoing payment to a vendor).
Choose Update to save the setting.
Note
If the number of A/P invoices per vendor is greater than defined, SAP Business One blocks the outgoing payment to that vendor.
Defining Print Settings
From the SAP Business One Main Menu, choose
Banking Outgoing Payments Checks for Payment .Do one of the following:
In the toolbar, click
(Layout Designer...).In the menu bar, choose
Tools Layout Designer... .
More Information
Document Settings: Per Document Tab
See the how-to guides How to Work with Crystal Reports in SAP Business One and How to Customize Printing Layouts with the Print Layout Designer.
You can download both documents from the documentation area of SAP Business One Customer Portal at http://service.sap.com/smb/sbocustomer/documentation.