Edit control point coordinates

 From:  Lamar (RLDUFFY)
11484.1 
New to the program, with an incredibly basic question. I would like to edit a control point on the end of a line by entering new coordinates, rather than dragging to a new location. I select the line, & then click Edit | Show Points. This will let me select one of the end points & drag to a new location. But if I select a point & type in new coordinates, they display in the coordinate box, but nothing happens after I hit Enter. And dragging the point remains active. This is unlike the behavior in other areas of the program, like drawing the line in the first place. And I doing something wrong? Is this a program glitch?