Not sure if this is valid or not, but is ist possible to have this mode compatibility to use the trains from this mod? "
SUPERSONIC High Speed Train & fast large wagon Mod" (https://mods.factorio.com/mod/fast_trans)

If no new feuter will be added, also fine by my. Asking didn't hurt me by now. ;P

Hi, yea that would be a new feature to detect other mods present and pickup those mods changes to locomotives and then apply them to the Single Train Unit.
Will leave this thread here open in case I do work on this mod in the future (no plans at present).