Deformation

If I understand correctly, you can hit Crtl + T for the transform tool and right click. Choose perspective.

Or, you can hit Crtl + T and hold Crtl + Shft and drag on the side of the object.

PS: if you’re on the background layer, Alt + double click on the layer to unlock it.

Thanks for your reaction about "transform".
I was trying it with the wrong tools all the time.
The advantage of experimenting, though is that I discovered the perfect way to apply "Perspective Control" for all the architecture that I did’t shoot with a technical (bellows) camera.
Exiting! (I look at the clock and it’s midnight. I work for another half hour, look at the clock again and it’s 5 AM! Rats!)
bye and thanks again, Rob