[Systat] Kaplan Meier Survival estimates

I'm trying to teach myself how to use Systat. I would like to use it to conduct a staggered entry Kaplan Meier survival estimation. I am not sure how to set up the data so that the correct variables are used to perform the calculations.

So far, I have loaded my data into the program and have columns for week, number at risk, number of deaths, number new added and censor status. But when I run the non-parametric survival analysis the results seem to have used the wrong column for the number at risk (looks like time but I'm not sure)

I would really appreciate any advice on how to set up my data in the data editor and also the correct way to run the analysis. Thanks in advance!