After all, you have it on the diagram that you gave. At night, if I have a moment, I will write you what and how.
Added after 12 [hours] 8 [minutes]: Connecting an additional controller to the original:
The additional controller should be connected according to the "controlled lock (-)" scheme, and then the brown wire should be connected to the red and white wire in connector X61 of the original controller and the yellow wire to red and white in connector X61.
Connecting instead of the original driver:
The additional controller should be connected according to the "direct connection to actuators" scheme and the brown wire should be connected to the black and red wire in the connector X62 of the original controller and the yellow wire to the black and yellow in the connector X62 and the black and blue in the connector X61 (in the case of reverse operation, change places brown and yellow wires).
To close the windows you need to make an inverter on the relay changing the signal (-) to (+), and then connect it to the red-yellow wire in the connector X61 of the original controller.
The flashers should be found in the main bundle black and white and black and green wires with a cross section of 0.75 mm2 and connect to them using rectifier diodes.
Power can be supplied from brown (-) and red (+) 2.5 mm2 wires in connector X62.