Hi BulleTime,
Currently, through we support 4.9. In the download pack their should be two folder “Launcher” and “FromSource”. Depending on where you get your version of Unreal, please copy the content of these folders to your engine or project “Plugins” folder.
For 4.10, we are moving to a new approach, where you can create your rigs within the unreal editor, without needing to go through .
Thanks