Split cell into two

`Ctrl` + `↑ Shift` + `-`

All hotkeys for Jupyter Notebook

Command mode Enter edit mode	`⤶ Enter`
Edit mode Run cell, select below	`↑ Shift` + `⤶ Enter`
Edit mode Run cell	`Ctrl` + `⤶ Enter`
Edit mode Run cell, insert below	`Alt` + `⤶ Enter`
Command mode Go to code	`Y`
Command mode Go to markdown	`M`
Command mode Go to raw	`R`
Command mode Go to heading 1	`1`
Command mode …to <keybs>6</keybs>: Go to heading 2, 3, 4, 5, 6	`2`
Edit mode Move cursor up or previous cell	`↑`
Command mode Select cell above	`K`
Edit mode Move cursor down or next cell	`↓`
Command mode Select cell below	`J`
Command mode Insert cell above	`A`
Command mode Insert cell below	`B`
Command mode Cut selected cell	`X`
Command mode Copy selected cell	`C`
Command mode Paste cell above	`↑ Shift` + `V`
Command mode Paste cell below	`V`
Command mode Undo last cell deletion	`Z`
Command mode Delete selected cell	`D` then `D`
Misc Merge multiple cells	`↑ Shift` + `M`
Edit mode Save and Checkpoint	`Ctrl` + `S`
Command mode Toggle line numbers	`L`
Command mode Toggle output	`O`
Command mode Toggle output scrolling	`↑ Shift` + `O`
Edit mode Command mode	`Esc`
Command mode Show keyboard shortcut help dialog	`H`
Command mode Interrupt kernel	`I` then `I`
Command mode Restart kernel	`0`
Command mode Scroll down	`Space`
Command mode Scroll up	`↑ Shift` + `Space`
Command mode Ignore	`↑ Shift`
Edit mode Code completion or indent	`⭾ Tab`
Misc Show the Docstring (documentation) for the the object you have just typed in a code cell	`↑ Shift` + `⭾ Tab`
Edit mode Indent	`Ctrl` + `]`
Edit mode Dedent	`Ctrl` + `[`
Edit mode Select all	`Ctrl` + `A`
Edit mode Undo	`Ctrl` + `Z`
Edit mode Redo	`Ctrl` + `↑ Shift` + `Z`
Edit mode Redo	`Ctrl` + `Y`
Edit mode Go to cell start	`Ctrl` + `Home`
Edit mode Go to cell start	`Ctrl` + `↑`
Edit mode Go to cell end	`Ctrl` + `End`
Edit mode Go to cell end	`Ctrl` + `↓`
Edit mode Go one word left	`Ctrl` + `←`
Edit mode Go one word right	`Ctrl` + `→`
Edit mode Delete word before	`Ctrl` + `⬅ Backspace`
Edit mode Delete word after	`Ctrl` + `Del`
Edit mode Command mode	`Ctrl` + `M`
Misc Split cell into two	`Ctrl` + `↑ Shift` + `-`
Edit mode Toggle comment on current or selected lines	`Ctrl` + `/`
Misc Command palette	`Ctrl` + `↑ Shift` + `P`
Misc Find and replace in code	`Esc` + `F`
Misc Toggle cell output	`Esc` + `O`
Misc Select next cell in downwards direction	`↑ Shift` + `J`
Misc Select next cell in downwards direction	`↑ Shift` + `↓`
Misc Select cell above	`↑ Shift` + `K`
Misc Select cell above	`↑ Shift` + `↑`