//! Defines that specified document must be loaded by demand
void setLoadByDemand(std::string theID, const int theDocID);
//! Returns true if specified document must be loaded by demand
//! Defines that specified document must be loaded by demand
void setLoadByDemand(std::string theID, const int theDocID);
//! Returns true if specified document must be loaded by demand
//! Closes and removes the documents that are not loaded by demand and
//! not in the given list
void removeUselessDocuments(std::list<std::shared_ptr<ModelAPI_Document> > theUsedDocs);
//! Closes and removes the documents that are not loaded by demand and
//! not in the given list
void removeUselessDocuments(std::list<std::shared_ptr<ModelAPI_Document> > theUsedDocs);