Как сделать чтобы в tabWidget выбираешь из списка 1 то открывается из tabWidget_2 вкладка Tab 1 если  tabWidget выбираешь из списка 2 то открывается из tabWidget_2 вкладка Tab 2, когда нажимаешь pushButton то открывается вкладка из tabWidget Tab 2 и если из comboBox_2 выбираешь 3 то открывает из tabWidget_2 вкладка Tab 3
# Form implementation generated from reading ui file 'gg2.ui'
#
# Created by: PyQt6 UI code generator 6.4.2
#
# WARNING: Any manual changes made to this file will be lost when pyuic6 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt6 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(800, 600)
        self.centralwidget = QtWidgets.QWidget(parent=MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.tabWidget = QtWidgets.QTabWidget(parent=self.centralwidget)
        self.tabWidget.setGeometry(QtCore.QRect(20, 60, 431, 80))
        self.tabWidget.setObjectName("tabWidget")
        self.tab = QtWidgets.QWidget()
        self.tab.setObjectName("tab")
        self.comboBox = QtWidgets.QComboBox(parent=self.tab)
        self.comboBox.setGeometry(QtCore.QRect(10, 20, 391, 21))
        self.comboBox.setObjectName("comboBox")
        self.comboBox.addItem("")
        self.comboBox.addItem("")
        self.tabWidget.addTab(self.tab, "")
        self.tab_2 = QtWidgets.QWidget()
        self.tab_2.setObjectName("tab_2")
        self.comboBox_2 = QtWidgets.QComboBox(parent=self.tab_2)
        self.comboBox_2.setGeometry(QtCore.QRect(8, 20, 411, 22))
        self.comboBox_2.setObjectName("comboBox_2")
        self.comboBox_2.addItem("")
        self.tabWidget.addTab(self.tab_2, "")
        self.tabWidget_2 = QtWidgets.QTabWidget(parent=self.centralwidget)
        self.tabWidget_2.setGeometry(QtCore.QRect(20, 170, 721, 341))
        self.tabWidget_2.setObjectName("tabWidget_2")
        self.tab_3 = QtWidgets.QWidget()
        self.tab_3.setObjectName("tab_3")
        self.tabWidget_2.addTab(self.tab_3, "")
        self.tab_4 = QtWidgets.QWidget()
        self.tab_4.setObjectName("tab_4")
        self.tabWidget_2.addTab(self.tab_4, "")
        self.tab_5 = QtWidgets.QWidget()
        self.tab_5.setObjectName("tab_5")
        self.tabWidget_2.addTab(self.tab_5, "")
        self.tabWidget_3 = QtWidgets.QTabWidget(parent=self.centralwidget)
        self.tabWidget_3.setGeometry(QtCore.QRect(470, 70, 281, 80))
        self.tabWidget_3.setObjectName("tabWidget_3")
        self.tab_6 = QtWidgets.QWidget()
        self.tab_6.setObjectName("tab_6")
        self.pushButton = QtWidgets.QPushButton(parent=self.tab_6)
        self.pushButton.setGeometry(QtCore.QRect(14, 20, 241, 23))
        self.pushButton.setObjectName("pushButton")
        self.tabWidget_3.addTab(self.tab_6, "")
        self.tab_7 = QtWidgets.QWidget()
        self.tab_7.setObjectName("tab_7")
        self.pushButton_2 = QtWidgets.QPushButton(parent=self.tab_7)
        self.pushButton_2.setGeometry(QtCore.QRect(20, 20, 221, 23))
        self.pushButton_2.setObjectName("pushButton_2")
        self.tabWidget_3.addTab(self.tab_7, "")
        MainWindow.setCentralWidget(self.centralwidget)

        self.retranslateUi(MainWindow)
        self.tabWidget.setCurrentIndex(1)
        self.tabWidget_2.setCurrentIndex(0)
        self.tabWidget_3.setCurrentIndex(1)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.comboBox.setItemText(0, _translate("MainWindow", "1"))
        self.comboBox.setItemText(1, _translate("MainWindow", "2"))
        self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab), _translate("MainWindow", "Tab 1"))
        self.comboBox_2.setItemText(0, _translate("MainWindow", "3"))
        self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab_2), _translate("MainWindow", "Tab 2"))
        self.tabWidget_2.setTabText(self.tabWidget_2.indexOf(self.tab_3), _translate("MainWindow", "Tab 1"))
        self.tabWidget_2.setTabText(self.tabWidget_2.indexOf(self.tab_4), _translate("MainWindow", "Tab 2"))
        self.tabWidget_2.setTabText(self.tabWidget_2.indexOf(self.tab_5), _translate("MainWindow", "Tab 3"))
        self.pushButton.setText(_translate("MainWindow", "PushButton"))
        self.tabWidget_3.setTabText(self.tabWidget_3.indexOf(self.tab_6), _translate("MainWindow", "Tab 1"))
        self.pushButton_2.setText(_translate("MainWindow", "PushButton2"))
        self.tabWidget_3.setTabText(self.tabWidget_3.indexOf(self.tab_7), _translate("MainWindow", "Tab 2"))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec())