In your map list click on the three dot icon and click on the settings. (pic. 1+2)
When you are editing a map, click on the cogwheel icon in the upper right corner of your screen and click on the map properties. (pic. 3+4)
There you can change:
Tags: are used for better thematic organization of your map. Write the tag into the tagbar and confirm by Enter. The tag will be selectable via the tag selection in the upper left corner of your screen.
Private scheme on/off: When the private scheme is turned on the map will not appear in the results of ContextMinds search engine.
Comment: contains additional information about the map.
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pic. 2
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pic. 4