Go to the 'Interactive Apps' tab and choose Jupyter Notebook
You will then be prompted by a window asking you what resources you want to use.
These should be set on a per task basis as typically no two notebooks require the same amount of resources. 
Once you have set your resources and click launch, the scheduler will reserve your requested resources.
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Once the resources are available you should get an updated status like:
This is notebook session is still starting, once it has started the session will update to
Click 'Connect to Jupyter' to access your notebook.
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