n/observeEvent.html" class="external-link">observeEvent</a></span><span class="op">(</span><span class="va">input</span><span class="op">$</span><span class="va">destroy</span>, <span class="op">{</span></span></span>
<span class="r-in"><span>    <span class="fu"><a href="https://rdrr.io/pkg/shiny/man/updateSelectInput.html" class="external-link">updateSelectInput</a></span><span class="op">(</span><span class="va">session</span>, <span class="st">"Main2_1"</span>, choices<span class="op">=</span><span clas