Notation on four-vectors using imaginary spacelike components

Question

Can one just change the notation of four vectors so as instead of having $$ X^{\mu} =(X^0, \vec{X})$$we define $$ X^{\mu}=(X^0,i\vec{X})?$$ This way we could use the Euclidean metric instead of $$g^{\mu\nu}=\text{diag}(1,-1,-1,-1).$$