Master Pose Component with Static Mesh(5-0) Master Pose Component with Static Mesh (5-0)

Hi guys,
i have a problem with a blueprint animation i using ue version 5.0, i just create a character with a few static mesh components and when i try to set the master pose component for do animation i cant see it.
Maybe with a static mesh i cant to set the master pose component? I try to do a cast obj but didnt work. Any idea to resolve this?