How to customize the xmlsitemap? I installed the xmlsitemap module and would like to customize the sitemap.

For example, I would like to exclude some nodes that have a certain term reference field.
I would also like to be able to create separate sitemaps for each content type.

Is there a way to do that? 
Otherwise I could probably generate the xml sitemaps with service_views module.
You can do the same with xmlsitemap modules

Enable XML sitemap node, XML sitemap taxonomy submodules. 



After that you will get these options.