Creating a mesh and modifying or repairing it involves many operations. Various tools are available for making boundary repairs, enabling you to perform primitive operations on the boundary mesh, such as creating and deleting nodes/faces; moving nodes; swapping edges; merging/smoothing nodes; collapsing nodes, edges, and faces; and so on.
You can perform these operations using the appropriate dialog boxes. However, if you are handling a large and complicated mesh, you may find it difficult to perform these operations repetitively using the dialog boxes. To make your task easy, keyboard shortcuts are available.
Important: To make use of the keyboard shortcuts, display the geometry in the graphics window, click in the graphics window, then press the key combination. Many of the keyboard shortcuts are available as an onscreen tool button along the left side and bottom of the graphics window.
To repeat the same shortcut multiple times, after pressing the key combination, press Ctrl while using the right mouse button for multiple selections. This repeat shortcut is available only for some operations. The hot key help indicates the (previous) operation that will be performed in case of multiple selections.