Also you can select multiple vertices by left click-drag to make a blue box and select what is in side the box then lod-move vertices to open the dialog box and select smooth but it only smooths a bit and takes a long time to keep doing or you can select one of the other options but they tend to flatten the selected area and don't forget about the area filter on the lod menu 64 will move only one dot ( carefull can cause pointy hills or depressions in the map 128 moves about 3 dots accross etc .
