diff --git a/doc/salome/gui/GEOM/images/measures10.png b/doc/salome/gui/GEOM/images/measures10.png
old mode 100755
new mode 100644
index 091b2c0aa..7a05b55bb
Binary files a/doc/salome/gui/GEOM/images/measures10.png and b/doc/salome/gui/GEOM/images/measures10.png differ
diff --git a/doc/salome/gui/GEOM/input/check_compound_of_blocks.doc b/doc/salome/gui/GEOM/input/check_compound_of_blocks.doc
index e9893b8e5..c76c3997a 100644
--- a/doc/salome/gui/GEOM/input/check_compound_of_blocks.doc
+++ b/doc/salome/gui/GEOM/input/check_compound_of_blocks.doc
@@ -8,7 +8,10 @@ This operation checks whether a shape is a compound of glued blocks.
 
 To be considered as a compound of blocks, the given shape must satisfy the
 following conditions:
-- Each element of the compound should be a Block (6 faces and 12 edges);
+- Each element of the compound should be a Block (6 quadrangle faces);
+- Each quadrangle face is a face that has 1 wire with 4 edges. If there are
+more than 4 edges in a single wire and C1 continuity mode is switched on,
+a face is quadrangular if it has 4 bounds of C1 continuity.
 - Blocks can be connected only via an entire quadrangle face or an entire edge;
 - The compound should be connected;
 - Each couple of connecting quadrangle faces should be glued.
@@ -16,8 +19,10 @@ following conditions:
 
 In this dialog:
 
-- \b Object - the checked object. \b Selection button allows picking it in the viewer or in the object browser. 
-- \b Errors list informs of possible errors, for example:. 
+- \b Object - the checked object. \b Selection button allows picking it in the viewer or in the object browser.
+- <b>Use C1 criterion</b> - option what shitches on/off the C1 continuity mode.
+- <b>Angular Tolerance</b> - angular tolerance to check C1 continuity between neighbor edges in a wire.
+- \b Errors list informs of possible errors, for example:
 	- Not a block;
 	- Not glued;
 	- Not connected;
@@ -26,7 +31,7 @@ In this dialog:
 
 
 \n <b>TUI Command:</b>
-<em>geompy.CheckCompoundOfBlocks(Compound).</em> Checks if the shape
+<em>geompy.CheckCompoundOfBlocks(Compound, theIsUseC1 = False, theAngTolerance = 1.e-12).</em> Checks if the shape
 is a valid compound of blocks. If it is true, then the validity flag
 is returned, and encountered errors are printed in the python console.
 
diff --git a/doc/salome/gui/GEOM/input/get_non_blocks.doc b/doc/salome/gui/GEOM/input/get_non_blocks.doc
index e1b687eff..e2b566dd3 100644
--- a/doc/salome/gui/GEOM/input/get_non_blocks.doc
+++ b/doc/salome/gui/GEOM/input/get_non_blocks.doc
@@ -5,7 +5,7 @@
 
 This operation retrieves all non-block solids and non-quadrangular faces from the selected shape.
 
-A block solid is a solid that has 6 faces and 12 edges.
+A block solid is a solid that has 6 quadrangular faces.
 
 A quadrangular face is a face that has 1 wire with 4 edges. If there are
 more than 4 edges in a single wire and C1 continuity mode is switched on,