# hokuyo_node using 2 hokuyos at the same time

I have 2 hokuyo lasers which I want to use for mapping with hector_slam. I want both of them to map simultaneously so I could get a 360' view at once. What would be a good way to do this? Should both lasers publish to 1 topic? or should they use 2 different topics, and if so would I be able to incorporate 2 topics into 1 map? Thanks!