Short Code to show current chosen currency

Hi, thank you for your development of the plugin. It is easy to use. I have a few questions about layout setting:

1. Does it have a shortcode or a way to show the current chosen currency?(See attached air1.png)

2. Can the plugin read direct url, such as ‘/?display_currency=USD’? See attached screenshot air2.png. If it can, do you have additional javascript to keep the page doesn’t return to the home page if the user click the currency direct url link in other pages?

3. Can it have a setting like the attached screenshot air3.png? A click, and a popup showing all the currency?

Thanks.