Jupyter Notebook: Multiple notebook to one kernel?

Question

I'm doing some complicated works with Jupyter Notebook, so the notebook is very long (https://github.com/cqcn1991/Wind-Speed-Analysis).

Sometimes, during the middle of the notebook, I want to do some additional analysis. Adding them directly into the current notebook (in the middle) may make it more complex, and breaks its currecnt structure. I think it would be amazing if I can simply open another notebook, connect it to the existing notebook's kernel, then to do the additional analysis.

Something may like

# In the new notebook
connect_to 'exisiting_notebook_name' # get access to the existing notebook
df.describe()
# ...
# some additional analysis works

Answer 1

The scratchpad notebook extension sounds like exactly what you want.