How to weigh an arc between 2 nodes ?

Hello,
I'm trying to weigh arcs (explicitly) between nodes in Infranodus.

For example, in a social network perspective, I'd like to be able to import in infranodus a csv as :

Person 1 Person 2    Frequency of meeting/w.

Paul          Jacques          3

Simon       Jules                5

I could do it with Gephi, but I can't find the way to do it in Infranodus (but may be I did't look carefully enough ? ).

Thanks for your help.

Pascal