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Select an editable patch >
Modify panel > Modifier stack display > 
Expand the Editable Patch entry. > Edge sub-object level
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Select an editable patch > Modify panel > Selection rollout > (Edge)
At the Edge sub-object level of an Editable Patch object, you can select single and multiple edges and move, rotate, and scale them using standard methods. You can also hold down the 
key and drag an edge to create a new patch. Holding down the key during edge extrusion creates a new element.
Procedures
To unlock interior edges:
- At Patch level, you can change the default on a patch-by-patch basis by right-clicking a patch and choosing Manual Interior from the Tools 1 (upper-left) quadrant of the quad menu. Thereafter, when you move a boundary edge, interior edges are affected in a nonlinear way. The interior edges are no longer locked to the boundary edge. Warning: If you return a patch to the default, changes caused by Manual Interior are lost.
When you move an outer or boundary edge of a patch, the adjacent interior edges are normally “locked” so that they move in parallel with the boundary edge. This is often useful, because it provides a uniform transition across the patch. This default is known as Auto Interior.
Interface
Selection rollout
- Select Open Edges
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Selects all edges that are used by only one patch. You can use this to troubleshoot a surface; open edges will be highlighted.
For information on the other controls in this rollout, see Selection Rollout (Editable Patch).
Soft Selection rollout
See Soft Selection Rollout for information on the Soft Selection rollout settings.
