Thank you people!
Used the OTG cable with a USB pen drive loaded with the POIs, and used Nexus Media Importer set to "Advanced". Able to open the required folders and simply by touching the POI file and associated BMP file, able to copy across to the CoPilot Save folder. At each transfer, reopened CoPilot which led me through the install.
All the POIs now installed.
Thanks once again. Don't you love Forums where everyone is so helpful and friendly?