/control/execute icons.mac
/control/execute vis.mac

/gui/addMenu run Run
/gui/addButton run "beamOn 1" "/run/beamOn 1"
/gui/addButton run "beamOn 10" "/run/beamOn 10"
/gui/addButton run "beamOn 100" "/run/beamOn 100"
/gui/addButton run "beamOn 1000" "/run/beamOn 1000"

# User defined icon :
/gui/addIcon "Run beam on" user_icon "/run/beamOn 1" run.png