# Project Source Extension

The wildcard will reliably resolve to the source's project extension when utilized within a [Duplicate\_Project](https://docs.helmut.de/helmut4-releases/helmut4-components/helmutfx/streams/fx-event-triggers/duplicate_project) stream.

For example: prproj

{% hint style="warning" %}
This wildcard is exclusive to the [Duplicate\_Project](https://docs.helmut.de/helmut4-releases/helmut4-components/helmutfx/streams/fx-event-triggers/duplicate_project) stream.
{% endhint %}