Hello Dennis,    thank you for the reply. It really helped a lot!   Q1: That worked very well with the updateAttrbute processor.  Q2: This also worked. I had the the settings of the csvWriter service (UpdateRecord) messed up. But it works fine.  Q3: That is a bummer, I hoped it will would be a piece of cake to implement that. But i will look into one of the mentioned tools and figure it out. Q4: True that. The file is going to explode with data.    ... View more