You have to talk to him about the research once a month for twelve months to complete the achievement.
I'm assuming that the token part refers to the fact that you can't use them to halve the time taken (making it six months rather than the twelve). However, if you happen to miss a month for whatever reason, you can use the token to learn that month's research... but it'll still take twelve months to complete. That's how I read it at least.
I do agree that some form of book or dropdown menu would be a nice addition.
19-Sep-2020 12:51:51