I need help with transmission!

[Mission123]

I recently downloaded Transmission on my Mac but was wondering how can I integrate the Blocklist? I want to block bad IP addresses so, no one can monitor when I download and it would be safer. Does it come pre-installed inside of Transmission or do I have to install it externally? If someone could explain to me how, that would really be helpful!
Thank you in advance.

[Mission123]

Sorry, I had another question, how can I get to the prefs screen? I only see symbol buttons....