Presales questions

Hello there. We are considering buying the elite version but i have the following questions:

1) I saw there is an option to exclude items from feed. Can we choose categories to exclude or is it accepting only individual products?

2) Regarding the exclusion of products and as long as we can exclude categories, is there an option to exclude categories except for specific products?

3) I saw in the free version that there is only one Price field to be mapped. In the elite version is there an option to map sale price?

Thank you in advance