--- trunk/src/applications/staticProps/StaticProps.ggo	2014/03/13 13:03:11	1978
+++ trunk/src/applications/staticProps/StaticProps.ggo	2014/04/05 20:56:01	1979
@@ -50,7 +50,7 @@ groupoption "slab_density" -    "slab density" group="
 groupoption "scd"       s       "scd order parameter (either --sele1, --sele2, --sele3 are specified or --molname, --begin, --end are specified)" group="staticProps"
 groupoption "density"   d       "density plot" group="staticProps"
 groupoption "slab_density" -    "slab density" group="staticProps"
-groupoption "p_angle"   -       "p(cos(theta))" group="staticProps"
+groupoption "p_angle"   -       "p(cos(theta)) (--sele1 must be specified, --sele2 is optional)" group="staticProps"
 groupoption "hxy"       -       "hxy" group="staticProps"
 groupoption "rho_r"     -       "rho of R" group="staticProps"
 groupoption "angle_r"   -       "angle of R" group="staticProps"