A new Multi Output step is provided to allow the pipeline result to be written to one or more target collections based on configurable conditions:
You can add collections by selecting the + Add Collection button and then choosing one from the drop down list of the Output Collections field. In Condition Query field, you can provide your MongoDB query condition which has to be met so that the data get passed to the specific collection.
For more details, refer to Configuring the Multi Output section from the Configuring a pipeline user guide.