I remenber that in the past I treated to modificate this Perspective tools (even Shear Points tools) in basis of the 7feet Rotate Points modificated tool to get a similar control, but (of course) it didn't work 
... But well, I think this should be a very easy & quick thing for someone with a little scripting knowledges and I hope someday we can see it! PS: Ah! By the way... Actually (meantime
) I add a point where I want to deform it with the rest of the Shape points to can "simulate" a change in the center or the deformation in the desided group of points, to try it easily you can draw a circle in the center of the screen (i.e.) and add a separated temporal, or not temporal, point at right (out of the circle), ok? Then you must select all the points and treat to deform all with Perspective Points H in this case, this time the center changes in concordance of the distance of the added point 
...A, rudimentary solution meantime the miracle occurs ...CIAO!
...and, if possible, I'm much more happy working with this tool now