+ GroupBlock* getGroupBlockByName(QString name);
+
+ // methods for functional blocks
+ FunctionalBlock* createFunctionalBlock(GroupBlock *group, ReferenceBlock *ref);
+ FunctionalBlock* duplicateFunctionalBlock(FunctionalBlock *block);
+ bool removeFunctionalBlock(FunctionalBlock* block);
+ FunctionalBlock* getFunctionalBlockByName(QString name, GroupBlock* parent = NULL); //! if parent = NULL, search in the whole graph
+
+ // methods for source blocks
+ FunctionalBlock* createSourceBlock(ReferenceBlock *ref);
+ FunctionalBlock* duplicateSourceBlock(FunctionalBlock *block);
+ FunctionalBlock* getSourceBlockByName(QString name);
+ bool removeSourceBlock(FunctionalBlock* block);
+
+ // others
+ QList<AbstractInterface *> getOutsideInterfaces();
+
+