A flow can be in different states:
An inactive flow is in "design mode": the flow can be changed at will and flow element properties can be updated. An inactive flow does not process jobs. This state is indicated by the
icon next to the flow name in
the flows pane.An active flow is currently being executed by Switch server, i.e. it is processing jobs. An active flow cannot be edited. This state is indicated by
th e
icon next to the flow name in
the flows pane, and by the darkened background in the canvas.
See flow states for more information.