Standard engine and Heumas
Menu File – Options – Engines
The Standard engine is the analysis engine which automatically starts when you click the engine button (right) or press Alt-F2
Select your standard engine and the hash table size (ChessBase will suggest a reasonable value for this).
See also Default Engine ....
Heumas is the move input assistant and is itself a small, fast chess engine. You can switch it off if you want. "Heumas Ply" determines how deep Heumas looks into the position. With depth the quality improves, but this also requires more processing power.
Set a search depth for the threat animation in the board window.