Overlapping or carry over skill term
What is the term for skills where learning Skill A overlaps or carries over to Skill B?
I.E. An Olympic class Gymnast could carry over those skills and become a very good diver or a very good dancer.
I think the term you are looking for is "transferable" or "transferable skill".
"His graceful composure as a gymnast is transferable to his diving hobby."
"Somersaulting is a transferable skill between diving and gymastics."
Transferable skills — Cambridge
noun plural Skills used in one job or career that can also be used in another.
"Leadership is a highly transferable skill."