add option to add also to a prefix name, eg: ds.ml.bla and ds.ml_bla
add option to add also to a prefix name, eg: ds.ml.bla and ds.ml_bla

maartenbreddels/vaex,maartenbreddels/vaex,maartenbreddels/vaex,maartenbreddels/vaex,maartenbreddels/vaex,maartenbreddels/vaex