IMG2GPS Help required

[tkerby]

I'd like to use IMG2GPS (or any other similar tool) to load my gmapsupp.img file to my Nuvi 350 and include multiple selectable maps.

When I load some img files such as the excellent UK contour data available at http://www.smc.org.uk/contour_maps2.htm I have the option to set a 'Mapset Name' in the software. This is the name the nuvi gives next to the check mark to select the maps.

The contour set consists of a large number of tiles and potentially I'd like to load only some of them at a time. Unfortunately I see no way of splitting this into 2 'Mapset Names' and as the Nuvi only loads one gmapsupp.img file (or two if I also use an SD card) I cannot split the maps

In addition, I'd like to load other mapsets such as different basemaps etc. etc and have these appear under different names

How can I generate a gmapsupp.img file containing multiple selectable maps?

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