Option to reset exploration of the map on radar

When i enter the map, it is all blue on minimap and as i go through the map the blue parts disappear. Add a button, that will restart this so after i clear the map without looting I can reset the blue thing so I can follow the minimap where i have already been and where not so i don't forget some loot in the map.

This could be really useful with Mao Kun. Could be a command like /reset_minimap.