/usr/share/metview/etc/RttovVisualiserRules is in metview-data 5.0.0~beta.1-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | %if RTTOV_PLOT_TYPE = CHANNEL_TB_GRAPH %or RTTOV_PLOT_TYPE = JACOBIAN_MATRIX %then
%unset RTTOV_JACOBIAN_CHANNEL
|