Bend a part of a complex mesh

Hey there,

I am trying to bend a part of a mesh while keeping the rest of it in the same position. The problem is that I can’t fix the part of the geometry that is on the other side and that I want to maintain volume and geometry as much as possible,

I attach a picture of what I want to clarify: The straight line should be the axis of the bend.

I attach the file so you can play around with it:

bend_laterals_01.3dm (364.1 KB)