In the plugin settings:
Set the id_list to the ID(s) of the dropdowns you want to target. Separate multiple IDs with commas.

Example: dropdown1, categoryFilter, regionSelect

Set the label_text to the text you want to display as the second option (placeholder).
Example: All

The plugin will watch for those dropdowns to appear.
Once they are rendered, the second option (index 1) will be updated to show your custom label.

Once all specified IDs are handled, the plugin automatically stops observing for performance.