Not wanting to impose on a certain very helpful poster again I thought I would ask here.
I have been creating maps ,for a Garmin 800, using BBBIKE Extract. Each map has been loaded onto a separate micro SD card. Apparently, and this is because I don't know how, there is a way to have more than 1 map on a card by changing the file name. But I am not sure which file name.
Any assistance would be great!