*Steps to reproduce:*
# Open a Unity URP project
# Create a new Shader Graph asset in your assets via Create > Shader Graph > URP > Lit Shader Graph
# Open your new Shader Graph asset by double clicking on it
# Create a node with a Preview (e.g. Channel Mixer) by pressing spacebar to open the Create Node menu and double clicking on the node
# Ensure that the created node is not selected
# Use the shortcut Ctrl + T to Collapse or Expand All Previews

*Actual results:* Nothing happens

*Expected results:* The preview on the created node is either collapsed or expanded, dependent on its previous state.

*Reproducible with versions:* 
* 6000.0.11f1
* 6000.0.0b1

*Not reproducible with versions:* -

*Can’t test with versions:* 
* 2023.2.20f1 (shortcut not added)
* 2022.3.36f1 (shortcut not added)
* 2021.3.40f1 (shortcut not added)

*Tested on (OS):* Windows 11

*Notes:*
* The 'Collapse All Previews' and 'Expand All Previews' options in the context menu work. It is just the keyboard shortcut that is not functional.
* The same keyboard shortcut (Ctrl + T) is used to expand and collapse a preview of selected nodes. This works. It is specifically when you want to expand or collapse all previews (when you have no specific node selected) when it doesn't work.