Documenting VBA code for Excel Auto Complete

Question

When writing a custom function to use in excel using VBA, How to write the documentation comments so that the excel automatically displays during auto-fill of a formula?

Answer 1

I believe you must use Application.MacroOptions to register your function and its description, and optionally provide a help file to make the Help on this Function link work.

Not sure how to provide inline description for the parameters though.