billierios Hello!
You can follow the Unreal portion of the Indiemark 3 tutorial here: https://youtu.be/Kk4ZWwEWKY0
Broadly, you will need a Lens component, a LiveLink component, and a lens file. I would ensure your project uses one of the VP Unreal templates to ensure all these plugins are enabled.
A note, you do not need Reality Field to make this work with the Indiemark encoders. You can go right from LONET to Unreal.