Integrations for automatic product import

Good morning. I have two requests to develop in the field of automatic product import.
We all know that during the CSV import, in addition to being able to select the columns, thanks to the editor we can "write" what the software has to do. Unfortunately there are people, like me, who have difficulty in using complex strings due to lack of knowledge of the syntax to be used.
My requests are these:
1) Having the possibility, after having indicated the categories column, to have a summary of the categories present in the CSV and to be able to choose, by selecting or deselecting them, the categories not to be imported (and consequently the products connected to them) since, especially in the dropship, we may not want to import all categories and products that the supplier assigns.
2) The second request is a request that I believe concerns only Italian users, and that is to have the possibility of assigning a different VAT or even exemption to each category of goods. The example can be for those who use Storemanager for prestashop in a B2B electronics ecommerce and apply the reverse charge on the categories provided for by Italian law (smartphones, tablets, notebooks).