How-to-add-variables-in-the-schema-(pw.x-and-cp.x-).md

@@ -77,3 +77,5 @@ for example look at the attribute index in this type
 
 ## What to do if you want to add a variable to input element. 
 
+You can add the variable in the schema as explained  [above](#markdown-header-how-to-submit-changes)  that if the variable has been added as optional has no consequence at all in the program 
+