The transform objects tool allows you to reposition or rotate an object, defined by points selected with the measure tools.
Select the object to be repositioned (see for more information on how to do this).
Choose one of the measure tools, from Point to Point, Point Line or Accumulate
Select a base point on the selected object. This is the reference point on the object from which the repositioning will be calculated.
Select another point in the scene (or multiple points, depending on which measure tool you selected). This is the point (or points) which the base point will be repositioned to.
Click Transform Objects
to reposition the object at the second point. If you used one of the multiple point measure tools and selected
multiple points in the scene, clicking Transform Objects
again will reposition the object to
the next point, and so on.
JetStream also provides the ability to rotate an object.
Select the object to be rotated (see for more information on how to do this).
Choose the Measure Angle
measure tool.
See diagram below:

Select three points (1, 2, 3). The second point (2) will be the position about which the selected object (A) will be rotated. Lines from the first to the second point (1 to 2) and from the second to third point (2 to 3) will define the angle by which the object will be rotated (in the above case, 90 degrees).
Click Transform Objects
to rotate the object about the second point (rotate selected object by 90 degrees about point 2, which results in
object rotating from point A to B).
Click Transform Objects again to continue rotating the object about point 2, by the specified angle (rotate selected object by 90 degrees about point 2 again, which results in object rotating from point B to C).
See for information on returning an object back to its original position.