Geant4 macro file

From the main menu, choose "Files" and then ".mac".

At least the mu_plus_300_MeV.mac file coming with the application should be proposed. This file contains :

    /gun/particle mu+
    /gun/energy 300 MeV
    /run/beamOn 100

You can execute it with the examples/calorimeter. The GUI steps are :

It should start a run by shooting mu+ of 300 MeV in the template calorimeter.