How can I instruct nam to compute network layout before it shows the graph, e.g. to compute 10 interations with Ca=0.15, Cr=0.15 and then 10 with Ca=0.95,Cr=0.95. Man page doesn't seem to teach me this. I'm willing to hack the source code to do this, if necessary. Could you point me where to start with? Thanks a lot! Dan