I apologize if this has already been addressed elsewhere, but I’m stumped.

The following sentence appears on page 267 of SR5: “Data Processing is used to determine Initiative when running in VR and acts as the Limit for all Command tests performed on the RCC.”

What is a “Command” test and where can I find an example of it in the book?

I answered in the other thread, but will go ahead and throw my opinion up here as well, in case there is a different interpretation.

I think they were shooting for the "Control Device" Matrix Action, which is listed as being limited by Data Processing (or your innate limit, whichever is lower).