I created a shape with the create polygon tool.
Next I used the split polygon tool to draw the geometry.

I need to move one vertice along an edge.

I select the move tool, select the vertice and hold the "c" key while moving the vertice. Problem is the vertice will not stay on the same angle as the edge of the shape I created.

How can I constrain the vertice to move along the edge without changing position of the edge. I thought the "c" key was suppose to snap points to a curve or edge.

I know there is a simple solution to this. Help!!!!

AlanA