# DUT Management

Before you can assign DUT's to test stations you need to define DUT's by their serial numbers / names.

{% hint style="info" %}
Open the DUT management dialog by pressing the small button next the the DUT name drop down field in F11 dialog.
{% endhint %}

![DUT Management](/files/Upj1TZxwzid0Gfx2nkKy)

Just enter a name prefix and a numeric suffix and press the button.

You can delete individual DUT's by selecting them and pressing the **del key**.

[back to F11 dialog](/ltt/documentation/ltt-gui-manual/lttgui/dialogs/f11testconfiguration.md)


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