Editable edge collision points (Exact coordinates)

Hey,

is there a way to edit the edge collision points with coordinates ?

This would be grate because my lines are crooked :frowning:

Regards,

LifeArtist

Sry for the misunderstanding.
I uploaded a Pic where my problem is shown:

http://tinypic.com/r/2zquh5s/8 - Ps.: I exaggerated a bit here

Regards,

LifeArtist