If you are just interested in using TS4 mods this document is not for you.
Scaling various bones (e.g. fingers) with modifiers and applying them to the mesh is quite easy in Blender. Anyhow a tutorial will help a lot as Blender may be a little bit complicated to use. It will help a lot to have used S4S (S4Studio) and Blender before. I added some screenshots to make things easier to follow while reading the text is recommended.
(The 2nd S4S part is currently text-only - let me kn