__init__.py

            col.prop(self, 'downAngleV')
            col.prop(self, 'curveV')
            col.prop(self, 'attractUp')

            box.prop(self, 'useOldDownAngle')
            box.prop(self, 'useParentAngle')

        elif self.chooseSet == '4':
            box = layout.box()
            box.label(text="Prune:")
            box.prop(self, 'prune')
            box.prop(self, 'pruneRatio')
            row = box.row()
            row.prop(self, 'pruneWidth')
            row.prop(self, 'pruneBase')
            box.prop(self, 'pruneWidthPeak')

            row = box.row()
            row.prop(self, 'prunePowerHigh')
            row.prop(self, 'prunePowerLow')

        elif self.chooseSet == '5':
            box = layout.box()
            box.label(text="Leaves:")
            box.prop(self, 'showLeaves')
            box.prop(self, 'leafShape')
            box.prop(self, 'leafDupliObj')
            box.prop(self, 'leaves')
            box.prop(self, 'leafDist')

            box.label(text="")
            row = box.row()
            row.prop(self, 'leafDownAngle')
            row.prop(self, 'leafDownAngleV')

            row = box.row()
            row.prop(self, 'leafRotate')
            row.prop(self, 'leafRotateV')
            box.label(text="")

            row = box.row()
            row.prop(self, 'leafScale')
            row.prop(self, 'leafScaleX')

            row = box.row()
            row.prop(self, 'leafScaleT')
            row.prop(self, 'leafScaleV')

            box.prop(self, 'horzLeaves')
            box.prop(self, 'leafangle')

            # box.label(text=" ")
            # box.prop(self, 'bend')

        elif self.chooseSet == '6':
            box = layout.box()
            box.label(text="Armature:")
            row = box.row()
            row.prop(self, 'useArm')
            box.prop(self, 'makeMesh')
            box.label(text="Armature Simplification:")
            box.prop(self, 'armLevels')
            box.prop(self, 'boneStep')

        elif self.chooseSet == '7':
            box = layout.box()
            box.label(text="Finalize All Other Settings First!")
            box.prop(self, 'armAnim')
            box.prop(self, 'leafAnim')
            box.prop(self, 'previewArm')
            box.prop(self, 'frameRate')
            box.prop(self, 'loopFrames')

            # row = box.row()
            # row.prop(self, 'windSpeed')
            # row.prop(self, 'windGust')

            box.label(text='Wind Settings:')
            box.prop(self, 'wind')
            row = box.row()
            row.prop(self, 'gust')
            row.prop(self, 'gustF')

            box.label(text='Leaf Wind Settings:')
            box.prop(self, 'af1')
            box.prop(self, 'af2')
            box.prop(self, 'af3')

    def execute(self, context):
        # Ensure the use of the global variables
        global settings, useSet
        start_time = time.time()

        # If we need to set the properties from a preset then do it here
        if useSet:
            for a, b in settings.items():
                setattr(self, a, b)
            if self.limitImport:
                setattr(self, 'levels', min(settings['levels'], 2))
                setattr(self, 'showLeaves', False)
            useSet = False
        if not self.do_update:
            return {'PASS_THROUGH'}
        utils.addTree(self)
        # cProfile.runctx("addTree(self)", globals(), locals())
        print("Tree creation in %0.1fs" % (time.time() - start_time))

        return {'FINISHED'}

    def invoke(self, context, event):
        bpy.ops.sapling.importdata(filename="callistemon.py")
        return self.execute(context)


def menu_func(self, context):
    self.layout.operator(AddTree.bl_idname, text="Sapling Tree Gen", icon='CURVE_DATA')

classes = (
    AddTree,
    PresetMenu,
    ImportData,
    ExportData,
)

def register():
    from bpy.utils import register_class
    for cls in classes:
        register_class(cls)
    bpy.types.VIEW3D_MT_curve_add.append(menu_func)


def unregister():
    from bpy.utils import unregister_class
    for cls in reversed(classes):
        unregister_class(cls)
    bpy.types.VIEW3D_MT_curve_add.remove(menu_func)


if __name__ == "__main__":
    register()