Steer a run. Or stop it.
Adjust a production while it is working without throwing away the work already done, and end one outright with unspent credit returned.
Why steering and amending are not the same request
'Make it colder' and 'also give me a vertical one' arrive through the same box and are not the same thing.
The second changes what the job is. The first changes what the work looks like. Treating both as a change to the plan meant the first one cancelled unstarted work in order to rebuild a plan identical to the one it had just destroyed — slower, more expensive, and no different at the end.
Why the safer reading always wins
A request that touches no count, no format, no shape and no kind of output is treated as a steer whatever it was called.
It only ever downgrades, never the other way. The cheaper action is the one that destroys nothing, and a wrong guess in that direction costs a little time rather than finished work.
What stopping should mean
It should mean stop spending. Before this, the visible Stop control ended the view rather than the work — the browser stopped watching while the production carried on.
Stopping now ends the production and returns what was not already committed. Anything a supplier was already sent is charged, because it was genuinely bought.
Who this is for
Anyone who has watched a production go in a direction they did not want and had no move except waiting for it to finish.
Steering is the ordinary case and stopping is the safety valve. Most jobs want the first; the second exists so that wanting it is never expensive.
What steering is good at
Direction. Colder, warmer, more premium, less busy, closer, calmer. Anything you would say to a director while watching a monitor.
What it is not for is changing the deliverables. Asking for another format or another count is a change to the job, it is treated as one, and it is priced as one — because pretending otherwise would mean quietly spending money you did not agree to.
What happens to work already finished
It is kept. A steer applies to work still to come and to work that can pick it up; it does not throw away what is already done in order to remake it identically.
That was the behaviour before, and it was expensive in exactly the case people steer most often — a small adjustment late in a long job.