Add magnifying glass and replace search button?

Hi, I’m trying to figure out how to customize the Search box using this plugin.

I can see how to add a different title and change the text in the search button. However, I’ve been tasked with using this plugin, removing the Search button and instead in the search text box, adding a magnifying glass at the right-end, not unlike on the www.ads-software.com home page upper-right search box.

Is this possible with this plugin?

Thanks for any help!