K8016. How to synchronize 4 (or 6) K8016 PC generators?

Hi there,
I need to make 4 (or 6) different waves but they must start at the same moment. Can I do it by 4 (or 6) K8016 kits?
How to connect these 4 (or 6) K8016 to one PC? Or I must use 4 (or 6) PC (one PC for each K8016 generator) and push the “Enter”-button at the same time? I must make a decishion regarding to buy or not to buy 6 kits K8016.
What do you think about it?

I’m sorry, but it is not possible to synchronize the K8016 generators.

To get several K8016 generators working (not synchronized) on the same PC, you have to have as many printer ports with different port addresses.
Every generator is controlled from own instance of the PcLab2000SE software.