Hi, I have already added expandable column to order grid as in documentation:
<column name="last_comment" class="ModuleCore\Order\Ui\Component\Listing\Column\LastComment">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="component" xsi:type="string">Magento_Ui/js/grid/columns/expandable</item>
<item name="tooltipTitle" xsi:type="string">Tooltip Title</item>
<item name="visibeItemsLimit" xsi:type="number">1</item>
<item name="options" xsi:type="array">
<item name="0" xsi:type="array">
<item name="value" xsi:type="number">1</item>
<item name="label" xsi:type="string" translate="true">Option #1</item>
</item>
<item name="1" xsi:type="array">
<item name="value" xsi:type="number">2</item>
<item name="label" xsi:type="string" translate="true">Option #2</item>
</item>
</item>
</item>
</argument>
<settings>
<label translate="true">Expandable Column Component Example</label>
</settings>
</column>But I need to customize that, how to load options per row ?
