The "function" you need is in the "IClone Folder" for UE , you can download it here (live link kit) and add it to the content folder of your project :

https://www.reallusion.com/iclone/live-link/unreal-engine/download.html

It is so hard to follow ! The video and the screen capture are not updated for UE5 and the Reallusion 8 changes.
Can you update all that? Is there any official video updated?
Also, you are making very speedy videos which are not easy to follow when you are not english mother tongue.

Is there any good updated tutorial you can recommand? All the one I find are not showing all the process from start to finish.

Thanks

--------
PC : AMD Ryzen 9 5900X 12-Core Processor 3.70 GHz
RAM: 128 Go
OS: Windows 11 64 bits
Graphics Card : NVidia GeForce RTX 3090


Softwares: Reallusion products, Adobe suite, Blender, NVidia Omniverse

This video was easy to follow as the directions were shown and written as subtitles - if you slow it down or stop and follow each step carefully, I believe this works for you. https://www.youtube.com/watch?v=lb_VK-CVGkQ
My mistake was that I stepped over one task as I thought I had already installed the plugins, but that step icluded the new files that need to be copied to each UE-project content folder. But basically I followed this video and the fault I had to ask help for was not due to the video but my own carelessness. Now I have the pileline fully functional thanks to this helpful advise above.

Thanks for your compassion.
The fact is the UE change since UE5 and it is not easy to follow. 
If you have to slow down pause, stop, rewind to understand a video, this may not prove of simplicity and clearness.
I do not blame the author: i'm just asking to Reallusion to update its doc / tutorials to the latest version of their software (8) and follow major changes in UE (5).

--------
PC : AMD Ryzen 9 5900X 12-Core Processor 3.70 GHz
RAM: 128 Go
OS: Windows 11 64 bits
Graphics Card : NVidia GeForce RTX 3090


Softwares: Reallusion products, Adobe suite, Blender, NVidia Omniverse

When using CC4 FBX facial animation export for Meta Humans :

Great tutorial but a master of UE.
But I thought with Livelink things would be more straightforward to animate the facial and body of metahumans? 
thanks for your reply (which desperates me a bit, as I thought all the Reallusion stuff would be things more accessible).

--------
PC : AMD Ryzen 9 5900X 12-Core Processor 3.70 GHz
RAM: 128 Go
OS: Windows 11 64 bits
Graphics Card : NVidia GeForce RTX 3090


Softwares: Reallusion products, Adobe suite, Blender, NVidia Omniverse

Great tutorial by a master of UE.
But I thought with Livelink things would be more straightforward to animate the facial and body of metahumans? 
thanks for your reply (which desperates me a bit, as I thought all the Reallusion stuff would be things more accessible).

--------
PC : AMD Ryzen 9 5900X 12-Core Processor 3.70 GHz
RAM: 128 Go
OS: Windows 11 64 bits
Graphics Card : NVidia GeForce RTX 3090


Softwares: Reallusion products, Adobe suite, Blender, NVidia Omniverse

haha ,  it is only an alternative way how to get things from IClone/CC4 to a Meta Human. (I even don't know if it is the easiest way but it works 😁)
The Live Link way works fine too !

Hey guys do we still do things this way or do we just put the metahuman in iClone and use the livelink to transfer top Unreal engine and animate that way?
Also where can I find the best project settings and lighting for using Metahumans in UE5?

Thank you Bassline, I've tried it but from where I create the  CC4 anime PA for the preview pose asset ?