When you've used Memory-Map for a while, you may find the screen becomes cluttered with too many tracks or marks. While you can turn off track recording, and delete individual marks and tracks, there are also some more powerful tools to help you manage your overlay data.
First, you can save your data in named files. To do this, Menu, Overlays, press Menu again, and Save file. This will save the entire set of either marks or track currently loaded. After saving the data, you might want to Delete All. This deletes all Marks or Tracks currently loaded in memory. It does not delete the saved files. (If you want to delete a file, use a file browser).
Later, you might want to re-load the set of data you saved. Touch Menu and Load Saved Data in the mark or track folders.
If you have collected some data on the device, and you want to store or analyze it on your desktop computer, save it, connect your device to the PC and mount it. The GPX files are stored in the /Download/Memory-Map folder of the main shared memory area.
GPX is a open file format supported by Memory-Map's PC software as well as many other tools. The GPX data does not include the map images. For example you can transfer the data to a Garmin GPS, to use as a backup for your device.
You can also upload GPX data from your home computer to the device. This could be a route you have planned, or a set of points of interest you have compiled. There are also many websites that have trails and so on in GPX format. Just copy the GPX file to /Download/Memory-Map folder, and then tap Menu, Overlays, Menu, Load.
Sending and receiving GPX data by email