How to block indexing of specific pages

Greetings. I installed your plugin on one of my client’s sites today and for the most part I like what I see.

I do have a question, however. The previous sitemap plugin I was using allowed me to not index certain pages; for example, custom 404 and redirect pages as well as a custom login page I use to hide from bots and spiders, etc. Maybe I missed it, but I didn’t see a way to block specific pages using your plugin. Let me know if I’m wrong or if there’s a way to accomplish the task.

Thanks