Sweep cuting a double loft

[519 Kustomz]

Trying to sweep cut a profile into a pocket that has been loft cut in 2 directions. I can get the sweep to follow the edge of the outer face (x-y) but am not sure how to get it to follow z loft?? Anyone know if this is possible?

 

[DavidJ]

3D Sketch - project to sketch the edges that should make up the sweep path. You can use 3D sketches as paths.