To achieve preinfusion capabilities your meCoffee needs to control the pump and the valve of your machine.
This functionality requires Active PID.
Locate the brew button of your machine ( upper left ).
Disconnect the switched neutral wire from the brew button ( upper left, white ).
Fetch the white female-to-male wire from the second cable set.
Connect this wire to terminal #2 and insert the male side into the previously disconnected wire from the brew button.
Disconnect the switched live wire from the brew button ( upper right, orange ). Reconnect the black Active PID cable from the previous step to the upper right terminal of the brew button.
Fetch the orange female-to-male wire from the set and use this to connect the disconnected live wire ( orange ) to terminal #6.
The upper left terminal of the brew button stays unconnected.