Showing the correct orientation on an assembly

@rick_chapman,  Change rotation angle in view properties
  Rotation angle: All views, when created, have a rotation angle of 0 degrees. You can change this value only if the view has no parent (is not a 'child'), is not a parent (has no 'children'), or if the alignment with a parent is broken.

Valid values are between -360 and 360 degrees.

Tips

• The view rotates around the center of the view rectangle, which changes size as needed. For detail views, the view rotates about the center of the circle surrounding the detail view; the visible geometry stays the same and the circle stays the same size.
• When the Rotation angle is not 0 degrees, then the view properties to reconnect alignment are disabled. Similarly, the commands to reconnect alignment with the parent are also disabled. You must change the Rotation angle to 0 degrees before the view can reconnect with the parent.
• All dimensions adjust when a Rotation angle changes. Vertical and horizontal linear dimensions remain vertical and horizontal. Aligned and rotated linear dimensions remain aligned and rotated to their view geometry.
• View scale and label location change to be centered below the new view rectangle or detail view circle.
• Use Break alignment to parent to remove the alignment of the view to its parent. If there are no dependencies, that is, if the view has no children, then you can use the Rotation angle field once the alignment is broken. However, if there are other issues blocking the view from being rotated (that is, if it has children), then the view cannot be rotated. Keep in mind, that if a view has children it cannot be rotated even if you select break alignment.

or User can move part with the help of triad manipulator. For getting your requirement you have to refer below method.
1) First you have to give mate relationship with respect to each part. If you did not want to give each constraint initially then select each parts and give group constraint.
2) Now select fastened mate constraint and select mate connector of part and mate connector of origin.
3) Now you can create your assembly drawing as per your requirement.
Kindly refer below video which may be helpful to solve your problem.