MSET,<e1>,[<e2>],[<inc>],<index>

sets the material / soil layer index to <index> for the elements in the active group from <e1> to <e2> (default: <e1>) with step <inc> (default: 1). If an element belongs to a SOLID, PLANE, or LOVEWAVE group, and by default or by explicit setting is of type excavated soil, the index refers to the soil layer table, otherwise the index refers to the material table.