To split non-oriented edges

Separate connected edges of triangle with opposing normals

You can use this command to split an edge whose adjacent elements have opposing orientations.

This command is only available in the context view, by using the script action, or through the context menu.

1. In the context view, switch to the Actions tab.
2. Click Split Non-Oriented Edges.

Edges with opposing orientations are split to create two boundary edges.