# Add predefines to a datafield
Predefines are predefined values for particular datafields. They are added by navigating to a concept and then to the relevant datafield. Selecting allows you to add predefines values.
There are two options which should be highlighted:
* Ticking the box at the bottom prevents the user from entering free values.
* You can also add labels for the predefines, which can be used to provide a less ‘technical’ version of the predefine to the user (see also [Using codes instead of text fragments](/clauses/using-codes-instead-of-text-fragments.md)).
The **Label** will be shown when presenting the predefines to the user in the *Assemble Document* mode.
When creating a question for this datafield in *Design Q\&A* mode, these labels will also be automatically added as labels to the predefines in the question if:
* the question is created using the[ batch create](/qna/batch-create-pane.md) panel; or
* when you click the *Add datafield’s predefines* button after adding the question manually.
{% hint style="success" %}
Ccheck out our article on [Using codes instead of text fragments](/clauses/using-codes-instead-of-text-fragments.md), providing some essential tips on the use of predefines.
{% endhint %}
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