That works well in the AUTH sub-tag of SOUR so probably works here too.
Cool. I just tried ANCI and @[email protected], my XREF number (ooooo, that no-no # <LOL!> and see my name displayed. When I ran the Facts & Events report for ANCI, it showed the INDI name/details and in the Details, my name. So, doesn’t make sense (entering my XREF). Will continue exploring.
However now that you say the XREF will work with SOUR’s AUTH, that will be helpful as many times, the author is a related person/family on file.