Add Menu Icon (Plus Symbol): Click this menu to open a list of node types. Once you select a node type - you can then click on the map to add a node type.
Once you've placed a node onto the map, click and drag the node to the location you would like to save it at.
View Menu Icon (eye): Within this menu, you'll find a list of nodes similar to that of the add menu. Click to toggle the visibility of each node type.
Flag For Removal: Use the red flag on each node to flag it for an admin removal.