Originally this post was very different, but I realized some mistakes. I will give more details and rephrase the problem while the original post, however obsolete, has been put into a quote:
I have a USkeletalMeshComponent subclass that adds and exposes a couple of properties. Right now I edit these in the editor. Down the line, however, I would prefer something automatic. Therefore I thought that I might pull the initial properties from a .csv-file (since I noticed that UE supports them and it is a very versatile format).
The USkeletalMeshComponent-subclass is not specialized enough to just provide good initial values, hence I thought I might get more information from the actual skeletal mesh that is being used. And then read in the appropriate data.
I would be glad about any input, I suspect that there is a much better way of doing this.