To design format for transactions (e.g: Customer Invoice, Sales Invoice, Payment Voucher format and etc...)
Example: Design Sales Invoice format
1) Go to Sales > Sales Invoice > Click Print button
2) Click Customize button
3) Select Format that want to design > Click Amend button
4) Report Designer is opened
5) After done design the format, click File >Click Save (overwrite existing format)/Save As... (save as new format without overwrite existing format).
Thanks for viewing.