Thrd/SW Fittings toolbar: Thrd/SW Pipe 90 Street Ell Side 
Command line: H90S/H90ST
Places a 90 degree street elbow normal to the X-Y plane.
last point
Starts the component at the last point of the previously-created component.
Male
Starts the elbow at the male end point of the selected component.
Corner
Places the component at the corner of two pipes.
Male end direction
Specifies the direction of the male end of the elbow.