anchor.diff:              timestepping_metadata(2)%default_cfl = 0.99_dp
               timestepping_metadata(2)%default_theta = 1.6_dp
               timestepping_metadata(2)%nesting_thickness_for_one_timestep = 10_ip
  -            timestepping_metadata(2)%forcing_elevation_is_allowed = 'optional'
  +            timestepping_metadata(2)%forcing_elevation_is_allowed = 'optional' ! The option requires more storage
               timestepping_metadata(2)%eddy_viscosity_is_supported = .true.
   
               !
  
positive.code:             timestepping_metadata(3)%default_cfl = 0.99_dp
              timestepping_metadata(3)%default_theta = 1.6_dp
              timestepping_metadata(3)%nesting_thickness_for_one_timestep = 4_ip
              timestepping_metadata(3)%forcing_elevation_is_allowed = 'optional'
              timestepping_metadata(3)%eddy_viscosity_is_supported = .true.
  
              !
  
negative.code:             timestepping_metadata(1)%default_cfl = 0.99_dp
              timestepping_metadata(1)%default_theta = 1.6_dp
              timestepping_metadata(1)%nesting_thickness_for_one_timestep = 4_ip
              timestepping_metadata(1)%forcing_elevation_is_allowed = 'optional' ! The option requires more storage
              timestepping_metadata(1)%eddy_viscosity_is_supported = .true.
  
              !
  