A few of us put the Viscount on our PPLs back in the 60's. On dead heading and occupying the left seat, we were able to log P1. Various chats in Shell Mex House on the subject, prior to the act.
It wasn't long before we were told we couldn't swap seats, so all rather a waste of time, apart from bar-chat one-upmanship. I checked my PPL in recent years just in case I'd miss-remembered it, but it was much as I recalled.
Somewhere, I've got a PPL, CPL, Senior CPL, ALTP and an ATPL.