It is now possible to combine both underground and aerial cables in the same right-of-way! This feature affects mainly the ground plane component, where you must specify the formulae used for aerial, underground and mutual (underground/aerial) earth return representation. You must also specify in the coax or pipe cable components, whether or not they are aerial or underground. Note that it possible to define the above-ground cables as bare, which is equivalent to an overhead line conductor. In other words, you can now effectively simulate overhead lines and underground cables within the same system. In the future, support will be added to allow actual tower components to be used to define the aerial cables.