As far as I know, they use separated part with the original mannequin. So I’d say it would be fine using multiple parts.
For the rest, take a look at documentation : Performance Guidelines for Artists and Designers | Unreal Engine Documentation
As far as I know, they use separated part with the original mannequin. So I’d say it would be fine using multiple parts.
For the rest, take a look at documentation : Performance Guidelines for Artists and Designers | Unreal Engine Documentation