Search Question Speaker vs. Writer

Is there a search equivalent for identifying a writer in the same way we identify someone as a speaker? Here's an example of what I ran came across.

I was trying to identify all of Paul's commands

I searched the ESV {Label command} INTERSECTS {Speaker <Person Paul>}

This search returned 24 results in 19 verses. All of the results were from Acts. In each case Luke is recording a command Paul spoke. However, I was expecting to get all of the commands Paul wrote in his epistles also.

So I searched {Section <PropositionalOutline = Command>} INTERSECTS {Speaker <Person Paul>} thinking this might be the secret syntax to return the results I was expecting.

This search returns 26 results in 18 verses. Again all results are from Acts.

I recognize that in his epistles Paul is writing rather than talking, but it seems a biblical writer should be deemed as speaking. Since that is not the case, is there a Writer equivalent to Speaker?

Also, I recognize that I could simply search {Label Command} and restrict the range to the Pauline epistles. However, that may also return commands spoken by someone else. An example would be when Jesus told Paul "do this in remembrance of me."