Ever wanted to debug your formulas without writing several prompts into the code?
From the menu: Select FileToolsDebug Lotus Script
However, hold down the shift and control keys while you select it. Do the same to turn it off.
You will now be in the formula debugger. It is not as good as the script one but it is usable. I have not seen this documented anywhere. As its undocumented, it may not be available in all releases but it is V5.03.