Knockdown option

In the infinity 2D20 rpg you can spend momentum to Knockdown a target.
Can you do something similar in the Conan rpg because I cant find it.
Or can you do a called shot targeting a leg or something?

yes, there is a knockdown quality for some weapons,
the quality is explained in the corebook on page 153.
some weapons have knockdown written behind it,
the weapons that might have knockdown you have to check up at the weapon list p.147

Called Shot
Cost: 2 Momentum - The character can choose the hit location struck by a physical attack

Conan the brigand page 16.
Optional archery rules. Signature shot allows you to Pin: when attacking the target, the archer can choose to attempt to pin another character to a tree or other wooden structure.