Aligning group of vertexes?

I extruded number of edges independently in same direction. Now I need to even them out. How can I select all the points at the edge, then set them in one plane? In other words give them all single X coordinate? I can get coordinate of each vertex with “N” key and set them independently but that is too much work!

Select all the vertices hit [S][X][0], meaning; scale… in direction of X… so that the size of this cluster is squashed flat to zero.

Cool, why didn’t I think of that! Thanks.