I watched the videos - they were close but of course, my door handle had no allen set screw - so both sides had to come off together and go back on, together.
Both sides needed to be replaced.
I was able to get each sides actuator to stay "back" by slipping small screw drivers through the actuator holes to hold them out of the way. That let me reassemble. So, a big thank you for making the videos - huge help !