I have started using the next zen project for our sprints. We work in a traditional way, where story is assigned to me (PM). Then devs breakdown the story into tech subtasks and those subtasks are assigned to respective dev. Each dev put their own estimates at the subtasks, now I as a PM would like to know how much time has been spent on the story and how much is pending. I was trying to use automation rule but I can't define this rule in Jira. Is there any way to estimate or is there any other approach to know the estimates at story level?