#type    menu/item   operation/parent  label                              command/menu                activation    install?
menu    ptMenu       topMenu         ""                                      ""                          ""                      "" 
item    ptMenu       command         "Plot Probabilites Poisson Tweedie"       ProbabilitePT                     ""                      "packageAvailable('poistweedie')"
item    ptMenu       command         "Simulation Probabilites Poisson Tweedie"  powerExample                          ""           "packageAvailable('poistweedie')"   
item    ptMenu       command         "Gui for poistweedie package  "            GuiPT                          ""                      "packageAvailable('poistweedie')"
item    topMenu      cascade         "Poisson Tweedie"                          ptMenu                        ""                      "packageAvailable('poistweedie')"
