Dragpoint

dragpoint <wallnum> <x> <y>

This command essentially allows you to move a point in-game the way it would move in the map editor.

<wallnum>: The first vertex of the wall you would like to manipulate.

<x>: The target x coordinate that the wall vertex will be moved to.

<y>: the target y coordinate that the wall vertex will be moved to.

Fellow command rotatepoint is especially useful in conjunction with dragpoint.