Arena with a custom engine help

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Avatar of Thecoolman5

So I have developed my own engine (that kinda sucks) and I just recently implemented the basic functions of the UCI. The UCI GUI I am using is called Arena. I know that Arena has opening books and endgame tablebases but I don't know how to utilize them. Can anybody help me out here? Is there a way to have my engine switch on the automatic book or tablebase moves? Thanks!