dges.hasOwnProperty(each)) {
                                      for (let eachProp in allEdges[each]) {
                                          if (allEdges[each].hasOwnProperty(eachProp)) {
                                              propControl.addOption({id: eachProp, title: eachProp})
                                          }
                                      }
                                  }
                              }
                          }
                          else if (a