Thank you for your reply, but I have already read these pages. They do not provide information on what exactly to do… Maybe I am blind.
The Unreal documentation suggests that I contact Simplygon. Well, they are not easy to contact, since they don’t have that option on their website.
I Do Have a license for Simplygon. It is a free licence and I have already used the desktop application to simplify a few meshes.
How do I get to the interface related to Simplygon in Unreal Engine 4?