I'm using APS 1.81. and I have a requirement for a dynamic number of reviewers to review content in my workflow. I'm setting the list of users on a field in a previous step. I was just planning to use a subprocess for the following user review step to handle this (see How to design a process with a dynamic number of sub process tasks? ), but I also have a requirement that states that any reviewer can add additional reviewers for the review at any time during this review task. Any thoughts on the best way to manage this?