mxGraph.prototype.addSelectionCell=function(a){this.getSelectionModel().addCell(a)};mxGraph.prototype.addSelectionCells=function(a){this.getSelectionModel().addCells(a)};mxGraph.prototype.removeSelectionCell=function(a){this.getSelectionModel().removeCell(a)};mxGraph.prototype.removeSelectionCells=function(a){this.getSelectionModel().removeCells(a)};mxGraph.prototype.selectRegion=function(a,b){a=this.getCells(a.x,a.y,a.width,a.height);this.selectCellsForEvent(a,b);return a};