Handy shortcuts for Blender Compositor
Blender, by default, is equipped with shortcuts for most of the commonly used operations. The following list highlights shortcuts that will come in handy when working in Compositor:
Shift + A: This displays the Add menu at the pointer's location.
Ctrl + Shift + left mouse button: Applying this on any node connects its first output socket to the viewer node. Repeating this multiple times will cycle the connections on all the available output sockets.
Ctrl + left mouse button: This is used to cut the noodle connections.
X: This deletes the selected node.
Ctrl + X: This deletes the current node and connects the previous node to the next node.
Alt + middle mouse button: This pans the backdrop image.
Shift + D: This duplicates the selected node or noodle network.
Ctrl + left mouse button: This toggles between layout presets.
H: This collapses the node.
Shift + H: This hides/unhides the node preview.
Ctrl + H: This hides/unhides the unconnected sockets of a selected...
