Create subprocess from selected widgets multi widgets with automatic input output generation
In principle: you select multiple widgets and then click "Create sub process from selected" and the system puts them into sub widgets and creates all required inputs and outputs and reconnect the connections so that the content wise the workflow is unchanged. This is enhancement of ticket "Moving widgets in/out of the sub processes", but it is more tricky. Anyhow it can be seen on some workflow tools (I believe Knime has this).