My son has helped me to resolve my problem.
Hahaha......sounds similar to a neighbour who recently bought a brand new car with all the technological bells and whistles. He says it seemed like a good idea in the showroom but now he's thinking he may have to hire a high school kid to show him how it all works.
iMac (Retina 5K, 27", 2017), 3.4 GHz Intel Core i5, 8GB RAM, 2400 MHz DDR4
OS Mojave 10.14.6
Canon MX710 Printer
Epson Perfection V500 Photo Scanner
Time Machine on 1TB LaCie USB-C
Carbon Copy Clone on 500GB OWC Mercury OTG Pro