Want the different currency to display only in my cart page , not in all the pages

1) I have integrated the plugin my website with four different currency option like INR, USD, ASD and GBP. Now this is getting displayed in all of my web pages. I want this to be displayed only in the cart and payment page. Please guide to set this up.

2) The second issue is whenever user select a currency, the entire page is getting refreshed , this is also not required.

3) In Mobile view, we don’t want to display all the four currencies, so configured to display only one currency. If we do this sort of view, then we are not able to close this window without selecting any currency. Suppose user clicks it by mistakenly and try to close the user has to click on “select currency” to close. This is not good user experience. Can we have a close button or back arrow or some way for user to close that without selecting anything.