Pen tool - how to join and delete dots

[enginestar]

@Espermaschine thanks for all replies
i'm getting to love using gimp now

paths toolbox i found.
i can hide an unhide - but the round dots don't dissapear
this is a problem as selection can be slightly off - u only find out when u see the export otherwise
am i doing something wrong? i assumed the round circles where the 'selection and not the walking ants line?