<?xml version="1.0" encoding="utf-8"?>
<form>
    <fieldset name="general">
        <field name="match" type="comparator"/>
        <field name="value" type="nrgrouplevel"
            label="NR_USERGROUP" 
            description="NR_ACCESSLEVEL_DESC"
            multiple="true"
        />
    </fieldset>
</form>