Homogeneous superstrings with retract $CP^{1|4}$

Any complex-analytic supermanifold whose retract is diffeomorphic to the complex projective superline (superstring) $CP^{1|4}$ is, up a diffeomorphism, either member of 1-parameter family or one 9 exceptional supermanifolds. I singled out homogeneous these supermanifolds and described Lie superalgebras vector fields on them.