Click the Select Edge Point or Vertices tool guide.
Position the cursor along an edge. Use the dimension lines for precise
positioning or parametric location.
(Optional) Select Convert swept/mappable regions
to convert the split regions into mapped or swept blocks wherever
possible.
Click or press Enter to complete the split. A new vertex is placed at the
split position, creating two edges. The split precision depends on the
representation of the blocking edge and can be improved by converting a linear
blocking edge to a spline.