I'm using NETLink to modify an Excel file. I'd like to copy a sheet and put it after a specified sheet. The Microsoft documentation for the copy function is here. I can't figure out how to set an optional argument for the copy function.
sheets@Copy[(*what do I put here?*),sheets]
In this example code I'm trying to copy the first sheet and insert the new sheet after the first sheet. There are workarounds, but in general, how do I deal with optional arguments like this using NETLink?