Autodesk Inventor

[#1]

It sounds like it may be a lot of coding for you. Have you experimented with linking an Excel file?

[#2]

Hi 

Hope I didn't get it wrong, you can try the iPart.FindRow， which will look up the parameter in iPart factory. Attached please find a sample I made. Noticed that we didn't add the extension (.ipt)  in the rule.

I created two different style in the sheetmetal iPart which varies from its thickness, if you would like to share your sample I can look at it. you can send it to my email jingyiDOTliuATautodeskDOTcom.

i = iPart.FindRow("Test iLogic and Sheetmetal-iPart:1", "SheetMetalRule", "=", Thickness)