OpenChess

I have installed Drybka4 in Arena GUI , and seems fater than loaded in DFritz12.
But how could I turn on the background thinking in Arena? Engine load in Dfritz12 have "permanent brain" ,click this on engine will keep working in player's time. Any one know how to turn on this function in Arena?

Thank you very much.

from the engine tournament window, click the "options" tab, then check "ponder."

if you're playing against the engine, then configure the engine and check "ponder."

ponder is another word for permanent brain.