How to bend only selected vertices? I have the following problem which I do not know how to resolve by using blender.

I want to bend a bit of an object but I don't know how to achieve this result by just selecting few faces and not the entire object.

Below there is an image to explain myself better:



How can I do this?
Also, is it posible bending just by using Y/X axis blocking the Z axis ?

Thanks
The Bend Tool can be used to do what you are trying to achieve.  Select the components  you want to bend, position the 3D cursor at the point where the bend will pivot then press ShiftW