The standard knob of the selected node will cycle through its options, forwards or backwards (using alt+w and alt+shift+w, respectively).
Move nodes in the DAG.
script to align and sort nuke read nodes in the node graph editor. This is a tool I use EVERY DAY and helps a lot to sort and compare footage, AOVs and 3D layers.
Houdini and Modo let you edit multiple knobs by simply selecting a few and changing the knob of one of them. This isn't as full-featured as that, but it does let you simply and easily edit multiple nodes at once.
Change / Copy and Paste the color of the Nodes with this Python Panel
Link nodes, reconnect and duplicate links. Also set and read bookmarks inside the nodegraph.
Toggle nodes' (inside gizmo/group as well) properties, or close all properties.
nuke input process.
A keyboard shortcut that puts all selected dots in a straight corner with their input and output nodes.