diff --git a/OctavePlugin/OctaveScripts/LGRSOIL.m b/OctavePlugin/OctaveScripts/LGRSOIL.m
index 850d4f94c0..a202391c7a 100644
--- a/OctavePlugin/OctaveScripts/LGRSOIL.m
+++ b/OctavePlugin/OctaveScripts/LGRSOIL.m
@@ -1,3 +1,4 @@
+# Keep the values in the first LGR only
 
 CInfo = riGetActiveCellInfo();
 SOIL = riGetActiveCellProperty("SOIL");
diff --git a/OctavePlugin/OctaveScripts/kslice.m b/OctavePlugin/OctaveScripts/kslice.m
index a0f8cc5141..660381d2a5 100644
--- a/OctavePlugin/OctaveScripts/kslice.m
+++ b/OctavePlugin/OctaveScripts/kslice.m
@@ -1,3 +1,4 @@
+# Set all values to "Undefined" exept k-layers from 17 to 20
 
 CInfo = riGetActiveCellInfo();
 SOIL = riGetActiveCellProperty("SOIL");