Set Mesh origin to 0

Rhino
1

I am looking for a feasible way to set a plane face of a scanned and edited mesh to the origin 0 coordinates. Is there o good way to move and rotate it to this position?

here is a picture for example
toorigin

2

I guess I would use Orient3Pt (Scale=No), click on 3 vertices of the mesh face you want to align - the 1st one being the point you want to go to the origin, the second in the direction of the x axis - then for the target points type ‘0’ fir the origin, click some point on the X axis (Ortho on) and some point along the Y.

Otherwise you can set a custom CPlane>3Pt to the mesh face and then use RemapCPlane from the custom CPlane to Top CPlane.