Description from extension meta
Show or hide fastpages-style comment-marked jupyter notebook code when pressing on the extension icon.
Image from store
Description from store
Show or hide fastpages-style marked jupyter notebook code when pressing on the extension icon.
Mark python cells by adding one of the following comments to the first line
#hide
#hide_input
#hide_output
This will completely hide, hide only the input or hide only the output respectively.