HWPS-Actions.md

@@ -181,13 +181,18 @@ When creating a new object of type Action, one must first choose the type of act
 
 - Use case : Positioned profile action
 - Parameters :
-  - **DX** : 
-  - **DY** : 
-  - **rz** : 
-  - **Vertical mirror** : 
-  - **Horizontal mirror** : 
-  - **Positionning point** : 
-  - **Snap point** :
+  - **DX** : X-axis movement
+  - **DY** : Y-axis movement
+  - **rz** : Z-axis rotation
+  - **Vertical mirror** : Apply vertical symmetry to the section  => true / false 
+  - **Horizontal mirror** : Apply horizonal symmetry to the section => true false
+  - **Positionning point** : Choice of a point that will allow the section to be placed on the bar or on the attachment point of another profile.  The chosen position point must be present in the list of points of the section concerned.
+
+By default, the chosen point is the MRS point "Position point".
+  - **Snap point** : choice of a point on which the profiles stacked by the one concerned will be able to hang.
+
+By default, the chosen point is the MRS point "Position point".
+
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 ![#c5f015](https://placehold.it/15/c5f015/000000?text=+)
 **Placement of a profile at a caesura** <a name="Placementofaprofileatacaesura"></a>