Hi Tom, would it be an idea to disable the add ("+") button for all resx files that my be manipulated by the designer? These files can - from my (unprofessional) point of view - be identified by the element
<metadata name="$this.Localizable" type="System.Boolean, ...">
<metadata name="$this.Localizable" type="System.Boolean, ...">
<value>True</value>
Ralph