In Jupyter Notebook if you type 'p' you get this handy-dandy dialog:
Is there a way to access this or a similar feature in Jupyter Lab?
This is called the command palette and in the docs (http://jupyterlab.readthedocs.io/en/stable/user/commands.html) it states that the default keyboard shortcut is Ctrl+Shift+C
rather than Ctrl+Shift+P
as it is in Jupyter notebook