# Dataflow Model attributes
Attributes are custom metadata that help organize flows. The Administrator sets up the attributes that users can choose when creating a flow. You can find instructions on how to create attributes on the [Configure Dataflow attributes](/data-watcher-1.21/design/add-dataflow-attributes-to-flows.md) page.
Once created, Dataflow model attributes will be listed in the **Dataflow Modeler** → **DATAFLOW PROPERTIES panel** →  icon.
To add an attribute to a modeled dataflow, select it from the list. If the Attribute is **Open**, new attributes can be added on the fly.
These attributes are spread on instances and cannot be deleted.
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