Kill system flow

I would like to be able to kill abandoned or long running system flows. Sometimes a flow gets abandoned but the signal is not picked up by indicium/universal and it looks like it is still running. It would be very helpful to be able to kill any systemflow from deployed applications that runs for over a certain amount of time. Ideally the amount of time could be configured by the developers, something like we expect this flow to last for 5 minutes and if longer than 30 we want to be able to kill it.