Advice please regarding setting up serial avoidance and height Benewake Lunar Lidar

Hi everyone,due to the adverse weather,im back working on my 3 inch arducopter whick is flying good,What I would like to know is the following,I have A Benewake Lunar Lidar setup on serial 4 and rangefinder ! and configured to do proximity avoidance and I would like to set up a Benewake Lunar on rangefinder 2 and say serial 7 would this work both lidars are serial,many thank’s in advance