Hi scorpion1815,
While I agree you should check out the videos suggested by DayzSargent, to answer your specific question, “how can i pass animation from the ue4 mannequin to the character?” -The easiest way to do this is to delete the skeleton included in the “Complete Characters” directory and in the Pop up screen, replace asset with “the Ue4Skeleton.”
Then go to the ThirdPersonCharacterBP, Select the mesh then choose the character you’d like from the dropdown menu:
Now that character can perform all animations associated with that character’s anim blueprint.