hello, how to manage new added sites (I mean the sites of which I did not ask to index, there is the ability to selectively add the founded sites) ?

Under Manage Crawls, if you choose options. You can specify allowed to crawl urls and domains as well as disallowed to crawl domains and urls. Details can be found at:

https://www.seekquarry.com/p/Documentation#Performing%20and%20Managing%20Crawls

(look for the image with Edit Crawl Options)