There are a couple of ways to rename a node in Nuke.
1. | Double-click on the node to open its properties panel. |
2. | In the title field on top of the properties panel, you should see the current name of the node. Delete that name and enter a new name in its place, |
OR
1. | Click on the node in the Node Graph to select it. |
2. | Press N. |
3. | Enter a new name for the node in the rename field that appears on top of the node. |