Redmine

There is my workflow: when total spent of Story became more than total estimate, we need to stop and re-evaluate the Story. When i control it by myself, there is no problem. But when i try to delegate this process to devs or qa, there are situations, where flow had been forgotten.

I want solution like this: dev added track with time in Story, and when he try to change assignee, he can't do it until total estimate <= total spent. At least, until estimate <= spent, without subtasks: i will change the flow and we will not use subtasks for tracking.

There are second problem, that i can't limit ability to track devs to issue by tracker: for example, they can track only in Story, but can in Task. or vice versa