TS3DV642-Q1: Can i leave the unused data pins as floated or it should be terminated ?

Tool/software:

Hi team . I'm using TS3DV642-Q1 mipi switch in my project ,where the sensor connected with A lane outputs 4lane mipi csi-2 data and sensor connected with B lane outputs 2 lane mipi csi-2 data .So the mipi data lane 2 and lane 3 are'nt required. So should i leave the pin floating or it should be terminated .