Is it possible to add labels to contour lines?

@wascott I was able to do this successfully with Paraview 5.6.0-975-g3fceb06(5.6 from download wesite), but it fails for the version Paraview 5.6.0-1074-gdcb1bac (nightly binaries given by @cory.quammen under this post) Running Paraview on SSH -X

As soon as I select contour filter after the slice,
Error: Cannot create decorator of type “NonPolyDataInputDecorator”

Screen shot: