A user can edit existing layers with the drawing tools in GeoUnderground.
To edit a layer, go to the Folder Actions menu and click on the “Edit Layer" option. The drawing tools toolbar is displayed on the map and the name of the layer is displayed on the toolbar on the left side. The toolbar displayed will depend on the type of layer the user edits. The user selects the tools and makes the appropriate edits, then saves the layer.
NOTE: All toolbar icons were discussed in the Point Layer, Line Layer and Polygon Layer documents. Please refer back to those documents for more details on each icon.