Multipart entity

This is kind of both a modding and MCreator question. Is there a way to make a multipart entity like the Ender Dragon with MCreator? I know it's possible in Forge because I read the Forge wiki, but is there support for this in MCreator or does it require custom code? If there is no support yet, it'd be a good addition because blocks can have multiple bounding boxes but entities can't and that's a problem for non-cubic shaped entities.