It would be very useful if yEd remembered the last storage path of each open graph (several tabs). Otherwise it is often necessary to select manually the last storage location of each graph again.
At the moment yEd only stores the last used path independant of the current opened graph. E.g. if two graphs are opened with yED (graph1, graph2), yEd does not remember the two different storage locations of the two graphs (e.g. c:\temp1 for graph1 and c:\temp2 for graph2))