Exclude a category or a product from the sitemap

Hello,
It would be handy to be able to exclude a category or a product from the sitemap web page and the sitemap xml feed.
For instance, some categories might just be used for newsletters' landing page or for a particular discount management.
Best regards.

Its not the best way but you can do sth like that:

1. Set the category MetaKeywords like: "..., ..., NOSITEMAP"
2. Change in CommonController Line 540

form
model.Categories = categories.Select(x => x.ToModel()).ToList();

to
model.Categories = categories.Select(x => x.ToModel()).Where(y => !y.MetaKeywords.Contains("NOSITEMAP")).ToList();

Now all Categories with "NOSITEMAP" are filltered out.

!!!NOT TESTED!!!

Thank you. But to do this kind of modification, we'd better do it properly by adding a field ;)
The idea of ​​my post was to propose a new feature if the NC team is interested.

ah ok...understand...is better to add it with new release and then with a new field in db.