<p>This seems pretty reasonable.  I suggest either:  </p>

<ol>
<li>I just make <code>[type-ii-errors]</code> a synonym of <code>[type-i-errors]</code> and merge them, or  </li>
<li>make a new tag, <code>[type-i-&amp;-ii-errors]</code>, and make both a synonym of that.  </li>
</ol>

<p>Upon reflection and discussion, I think #2 is best.  </p>
