You can choose the required data in the dialog window:
Projection
The coordinates of the normal projections of the entered points into the adjusted plane are displayed on the list (all these points lie in the result plane).
Tilt
The plane is tilted in XY so the resulting XY coordinates are coordinates of the points in this plane and the coordinate Z is the distance of the entered points from the plane. These coordinates can be used, for example, for creation of the contoured plane during the conversion of the distortion of the plane areas.
Tilt Z=0
The resulting XY coordinates are identical to the previous, but the coordinate Z is zero for all the points (the points lie in the tilt plane).