Thrd/SW Fittings toolbar: Thrd/SW 90 Street Ell Plan 
Command line: 90SS/90ST
Places a 90 degree street elbow in the X-Y plane.
last point
Starts the component at the last point of the previously-created component.
Female
Places the female end of the elbow first.
Male
Places the male end of the elbow first.
Corner
Places the component at the corner of two pipes.
Female end direction
Specifies the direction of the female end of the elbow.
Male end direction
Specifies the direction of the male end of the elbow.