====== ETYPE Command ======

__ETYP__E,<e1>,<e2>,[<inc>],<type>

where <type> is
  * 0 - default
  * 1 - structural
  * 2 - soil

sets the element type to <type> for the elements between <e1> and <e2> with step <inc> (default: 1) from the SOLID, PLANE, or LOVEWAVE active group. By default, if an element has all nodes at / below the ground elevation, it is assumed to be a excavated soil, else structural element.