default-value for display tag in form fields

[Bruno Busco]

Hi,
I need to show a default string (e.g. "None") in a field of a form of type
"list".
I was looking for something like...

<field name="usage" title="${uiLabelMap.WebtoolsUsage}" sort-field="true">
    <display default-value="${uiLabelMap.CommonNone}"/>
</field>

...but the display tag does not support the default-value.

Would it make sense to add it?

Thanks,
Bruno