QtDragon unrecoverable if axis limit hit during auto mode.

    #######################
    # CALLBACKS FROM FORM #
    #######################

    # main button bar
    def main_tab_changed(self, btn):
        index = btn.property("index")
        if index is None: return
        # if in automode still allow settings to show so override linits can be used
        if STATUS.is_auto_mode() and index != 9:
            self.add_status("Cannot switch pages while in AUTO mode")
            # make sure main page is showing
            self.w.main_tab_widget.setCurrentIndex(0)
            self.w.btn_main.setChecked(True)
            return
        self.w.main_tab_widget.setCurrentIndex(index)
        self.w.stackedWidget.setCurrentIndex(self.tab_index_code[index])
        if index == TAB_SETUP:
            self.w.jogging_frame.hide()
        else:
            self.w.jogging_frame.show()
        if index == TAB_MAIN:
            self.w.stackedWidget_dro.setCurrentIndex(0)

    # settings tab
    def chk_override_limits_checked(self, state):
        if state:
            self.add_status("Override limits set")
            ACTION.TOGGLE_LIMITS_OVERRIDE()
        else:
            ACTION.TOGGLE_LIMITS_OVERRIDE()
            self.add_status("Override limits not set")