一個好軟件能方便日常事務，所以此處先介紹
/jupyterlab-toc
forked from jupyterlab/jupyterlab-toc
jupyterlab-toc
A Table of Contents extension for JupyterLab. This auto-generates a table of contents in the left area when you have a notebook or markdown document open. The entries are clickable, and scroll the document to the heading in question.
Here is an animation showing the extension’s use, with a notebook from the Python Data Science Handbook: 
Prerequisites
- JupyterLab v0.35
Installation
sudo jupyter labextension install @jupyterlab/toc
自動 TOC 生成工具。如是無論
閱讀、寫文章、測試程式、思考演算法…
能更稱心也。
【預設】不打開任何開關
【
】打開
【
】打開
【
+ 】同時打開
………
卻不知『
』 Show Tags Menu 是什麼東東哩？
推敲其名，或指的是
/jupyterlab-celltags
A JupyterLab extension for notebook cell tags
jupyterlab-celltags
The JupyterLab cell tags extension enables users to easily add, view, and manipulate descriptive tags for notebook cells. The extension includes the functionality to select all cells with a given tag, supporting the performance of any operation on those cells.
Prerequisites
- JupyterLab
Install
sudo jupyter labextension install @jupyterlab/celltags
後經驗證，概無疑矣。
點選『jupyterlab cell inspector』，
新增『bookmark』cell tag
點選【bookmark】，接著按 Filter】
【預覽】，跳躍︰
【清除】，還原【Clear All】︰
