Thank you for replying so quickly! I am really hoping to get this working. I have not used the Assistant and cannot figure out how to change the runtime. When I click on the link you have above and I sign in, I can see my notebook. However, when I click on it the item details show but I only see the options to "View Item JSON", "View Item Resources", "Copy Item", and "Open in ArcGIS Online" (see attached screenshot). I can't seem to open the Notebook in the assistant? If I choose to open in AGOL, it takes a long time to redirect and open but, indeed, opens directly in AGOL with all of the same selections that AGOL has (It looks like I am running Python 3 for advanced 6). I do not see anywhere to change the runtime. Can you help me to find it? Im not sure if it matters, but the notebook is not currently shared.