* Specify **Nodes**, **Edges** and **Faces**, which will be extruded, by one of following means:
* **Select the whole mesh, sub-mesh or group** activating the corresponding check-box.
* Choose mesh elements with the mouse in the 3D Viewer. It is possible to select a whole area with a mouse frame.
* Input the element IDs directly in **Node IDs**, **Edge IDs** and **Face IDs** fields. The selected elements will be highlighted in the viewer, if the mesh is shown there.
* Specify **Nodes**, **Edges** and **Faces**, which will be extruded, by one of following means:
* **Select the whole mesh, sub-mesh or group** activating the corresponding check-box.
* Choose mesh elements with the mouse in the 3D Viewer. It is possible to select a whole area with a mouse frame.
* Input the element IDs directly in **Node IDs**, **Edge IDs** and **Face IDs** fields. The selected elements will be highlighted in the viewer, if the mesh is shown there.