'Block indent jupyter notebook

Does anyone know how to get a command shortcut to work for block indenting and un-indenting in Jupyter notebooks? 
 In the Jupiter notebook command group there is a command “automatically indent selection”. When I put in a command mode control-/ for that command the notebook does block commenting. 
 
 I don’t see any other command that refers to indenting. 
 I can’t seem to figure this



Solution 1:[1]

it's

Tab

If you want to unindent, then

Shift + Tab

You need to have selected more rows or it's intellisense...

Solution 2:[2]

In JupyterLab,ctrl+[ and ctrl+] work for indentation/deindentation.

These solutions also are guaranteed to work, whereas Tab and Shift+Tab can trigger actions like intellisense if your cursor is in the middle of a line.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Vickel
Solution 2 tbrk