Infinite SEO Exclude From Sitemaps

I couldn't find any option to exclude certain page / post ID's from the sitemap. Is that possible?

Basically I have a lot of sites that run basic ecommerce plugins that require pages for checkout, confirmation etc. And having those pages in the sitemap is a big problem for me. Yes I can noindex them but that's not really ideal. I was using Google xml sitemaps plugin which has a lot more options, but I really like the idea of an all in one SEO plugin like infinite SEO (the main reason I signed up actually).

Let me know if I'm missing something. Thanks.