Pjotr, this would require the ability within RC to actively change the mesh geometry, which afaik is not possible at the minute. Doing this within the 2D imagery would have the advantage that the general workflow is already established, the points would be like control points. This is by the way older photogrammetry software worked. All that would be neccessary is to establish constraints between those points, a bit like it is already possible to define a distance between two CPs.