How to configure 4 i2c sonar sensor (sensor type: GY-US42v2)

Does you now how to add an i2c sonar sensor?. I’ve got 4 GY-US42v2 Sonar in a splitter, then i connected the output of that splitter to the original splitter of the main i2c port provided by the pixhawk 2.4.8. I still can’t find how to configure or add that four sensors in QGR. Hope you or anyone else can help me please.