Node Inspect: Double-Click (on a node)
Double-click anywhere on the node (excluding input values) to see only the output of that node (while in the Shader Editor). Double-click anywhere off of a node on the screen to return the previous connections exactly as it was before performing the node preview. [Shader Editor]
Exit Group / Node Inspect: Double-Click (on screen)
You can quickly exit groups by double-clicking anywhere on the screen off of a node. This is similar behavior to toggling Edit Mode with Power Select.
Select All In Frame: Double-Click (on frame)
Select a nodes inside of a node frame.
Toggle Variant: V
Sometimes subtle tweaks made to nodes are an improvement, sometimes it’s harder to tell. Power Node’s Toggle Variant feature solves this issue by allowing you to make changes to a node and quickly revert those changes back and forth. This becomes especially useful when comparing multiple mix-matched variants at a time. You can create a node variant by pressing V over a selected node. This stores the original node and creates a duplicate which can then be cycled back and forth by pressing V again as many times as you want.
Join Nodes: J
You can join (combine) any two nodes by selecting them and pressing J. Power Node’s Join feature automatically searches for the socket matches that make the most sense from the selected nodes. Additionally, Power Node knows when its best to use a Math Node or a Mix RGB node.
Swap Links: Alt-Left-Click (on the node side you want links swapped)
Pressing Alt-Left-Click on the left side of a node will swap the links of any two linked input sockets. Pressing Alt-Left-Click on the right side of the node will swap the links of any two output sockets. If there is only one linked socket on a side, pressing Alt-Left-Click will cycle the link down the list of sockets and back again.
Insert Color Ramp Node: R
Create and link a Color Ramp node to the right of the selected node. [Shader Editor, Geometry Nodes]
Insert Bright Contrast Node: C
Create and link a Bright Contrast node to the right of the selected node. [Shader Editor]
Insert Hue Saturation Node: S
Create and link a Hue Saturation node to the right of the selected node. [Shader Editor]
Insert Invert Node: I
Create and link a Hue Saturation node to the right of the selected node. [Shader Editor]
Delete & Reconnect: X
Delete selected nodes and reconnect links after deleting when possible.
Delete: Ctrl-X
Delete selected nodes without reconnecting links afterwards.
Cut Links: Ctrl-Left-Mouse Drag
Cut links between nodes.
Duplicate (Keep Links): D
Duplicate selected nodes and keep incoming links when possible.
Duplicate: Shift-D
Duplicate selected nodes without keeping links.
Add Nodes Menu: Right-Click
Bring up the Add Nodes menu.