To Insert a Vertex in a Line, Line String, Multi-Line, Shape, or B-spline Control Polygon
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Select the Insert Vertex tool ( split button).
![](GUID-6851BBFB-D383-2ECF-2A29-982C6FBD5084-low.png)
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Select the segment on which to add the vertex.
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Enter a data point to position the new vertex.
Using Insert Vertex to insert a vertex in a line string.