At the last meeting of the Utah Valley LabVIEW User Group, we had a Tips n Tricks segment with several good items presented on navigating the LabVIEW interface.
One of the questions was to locate a list of LabVIEW keyboard shortcuts. I promised to do a little research. Here are the results:
You can locate a list by typing "keyboard shortcuts" into the Index tab of the LabVIEW help.
Also, in the past, this has come on a card, distributed with other LabVIEW manuals, etc. If you are missing the card (or even if you aren't) you may want to try these links:
http://labviewwiki.org/Keyboard_shortcut
https://www.ni.com/docs/en-US/bundle/321353d/resource/321353d.pdf
Hope this helps!