I'm working with Pro5 also. It is much easier, and therefore my preference to develop routines using SBT tables and then incorporate them into SBT. I copy basic screen designs, and functionality, modify them as needed, and run them out of the "Custom" menu item. After we find that we don't need the original routine anymore, I replace the original menu item with the "Custom" routine. My degree is in Accounting, and I've failed the CPA exam 3 times (I really don't like working as an accountant anyway (-smile-)) and it doesn't pay as well, so I'm faily comfortable doing this, but it isn't for everyone.