code>gmse_summary</code></a> are
provided as GUI output.</p>
</div>
<div class="section level2">
<h2 id="custom-defined-sub-models">Custom defined sub-models<a class="anchor" aria-label="anchor" href="#custom-defined-sub-models"></a>
</h2>
<p>The function <a href="../reference/gmse_apply.html"><code>gmse_apply</code></a> allows
custom resource, observation, manager, or user sub-models to be
integrated into the GMSE framework (see <a href="SI2.html">Use of the
gmse_apply function</a>, <a href="SI4.html">Adva