[Users] initial data for gauge wave test from apples with apples paper

Hello all,

I am trying to set up the gauge wave test from the apples with apples paper https://arxiv.org/abs/0709.3559 "Appendix A.3. Gauge wave testbed". While these are simple enough the coding up the ADM variables is not a big deal, I would still ideally avoid this potential source of error and use a code that is already in the ET or Cactus.

Does anyone know if such a thorn exists in the ET (and would point me to it)? EinsteinExact does not seem to contain such a module (but only the shifted gauge test).

Yours, Roland