Cancel task on worker

[Trixtr]

I have a network render setup on multiple office machines and priority set to low. What I see is that sometimes a user of a networked worker computer may pause the worker or start some cpu intensive work, which leaves the Keyshot worker "stuck" on some percent complete. The result is that my rendering has to wait until the task can be completed on the worker.
Is there some way of cancelling / releasing a task on a specific worker and let another worker take it? Is not, then this should be an idea to implement.