Limbs can have palms, which are used as palms on arms, ankles on legs, and so on.
In IK Mode the palm can be aligned to the target or to the previous bone, such as the forearm, as required.
Each palm can have up to 100 digits and each digit up to 20 bones. Digits do not have IK and can be transformed only in FK. Digit controls include a Digit Manager and powerful digit modifiers for manipulating groups of digits.
By default, both palms and digits are aligned to the X axis.