I have a Blender file and I'm adding greeble to the walls of a corridor. I have an object from another spot in the file that I copied over to the new wall. I already baked the texture for the object but in order to get the object to fit in the new wall I had to add a few new faces and extrude a few already existing faces. The trouble is that these new faces/extruded faces are horribly tangled and oversized in the UV map. This is the UV map with my added faces and all of the vertices selected.
I want to just unwrap the new vertices/faces. Is there any way to unwrap the new vertices/faces into untangled shapes so I can reposition them in the old baked texture map in a way that looks somewhat natural?