It has been a while since the last update of renderStacks. Now renderStacks is supporting a nested pass setup with the pmodifier on passgroup and instanced passes. It took a lot longer than we expected. But, I hope this would add another dimension to your workflow!
Here is a short video about the pmodifier on passgroup and instanced passes.
A new tutorial and documentation
http://renderstacks.com/docs/
http://renderstacks.com/docs/
https://renderstacks.com/docs/
http://renderstacks.com/docs/
https://renderstacks.com/docs/
Also don’t forget the changelog
Happy renderStacking!