Notepad++

Edit menu

Delete to start of line

`Ctrl` + `↑ Shift` + `⬅ Backspace`

All hotkeys for Notepad++

File menu Open file	`Ctrl` + `O`
File menu New file	`Ctrl` + `N`
File menu Save file	`Ctrl` + `S`
File menu Save as	`Ctrl` + `Alt` + `S`
File menu Save all	`Ctrl` + `↑ Shift` + `S`
File menu Print	`Ctrl` + `P`
File menu Exit	`Alt` + `F4`
File menu Next document (also shows list of open files). Can be disabled - see Settings/Preferences/Global	`Ctrl` + `⭾ Tab`
File menu Previous document (also shows list of open files). Can be disabled - see above	`Ctrl` + `↑ Shift` + `⭾ Tab`
Search menu ...<keybs>5</keybs>: Jump down to next text marked. Use <keybs>0</keybs> for default found style	`Ctrl` + `1`
File menu Next document	`Ctrl` + `Page Up`
File menu Previous document	`Ctrl` + `Page Down`
File menu Close current document	`Ctrl` + `W`
Edit menu Copy	`Ctrl` + `C`
Edit menu Copy	`Ctrl` + `Insert`
Edit menu Copy current line to clipboard	`Ctrl` + `↑ Shift` + `T`
Edit menu Cut	`Ctrl` + `X`
Edit menu Cut	`↑ Shift` + `Del`
Edit menu Paste	`Ctrl` + `V`
Edit menu Paste	`↑ Shift` + `Insert`
Edit menu Undo	`Ctrl` + `Z`
Edit menu Undo	`Alt` + `⬅ Backspace`
Edit menu Redo	`Ctrl` + `Y`
Edit menu Select all	`Ctrl` + `A`
Edit menu Column mode select	`Alt` + `↑ Shift` + `← ↑ → ↓`
Edit menu Column mode select	`Alt` + `Mouse left click`
Mouse gestures (on fold point) Toggle collapsed state of this fold, and propagate below	`Ctrl` + `Mouse left click`
Edit menu Column editor	`Alt` + `C`
Edit menu Duplicate current line	`Ctrl` + `D`
Edit menu Switch the current line position with the previous line position	`Ctrl` + `T`
Edit menu Move current line or current selection if a single stream, up	`Ctrl` + `↑ Shift` + `↑`
Edit menu Move current line, or current selection if a single stream, Down	`Ctrl` + `↑ Shift` + `↓`
Edit menu Delete current line	`Ctrl` + `L`
Edit menu Split lines	`Ctrl` + `I`
Edit menu Join lines	`Ctrl` + `J`
Edit menu Launch GoToLine dialog	`Ctrl` + `G`
Edit menu Single line comment	`Ctrl` + `Q`
Edit menu Single line uncomment	`Ctrl` + `↑ Shift` + `Q`
Edit menu Toggle single line comment	`Ctrl` + `K`
Edit menu Block comment	`Ctrl` + `↑ Shift` + `K`
Edit menu (selection of one or more full lines) Insert tabulation or space (Indent)	`⭾ Tab`
Edit menu (selection of one or more full lines) Remove tabulation or space (outdent)	`↑ Shift` + `⭾ Tab`
Edit menu Delete to start of word	`Ctrl` + `⬅ Backspace`
Edit menu Delete to end of word	`Ctrl` + `Del`
Edit menu Delete to start of line	`Ctrl` + `↑ Shift` + `⬅ Backspace`
Edit menu Delete to end of line	`Ctrl` + `↑ Shift` + `Del`
Edit menu Convert to lower case	`Ctrl` + `U`
Edit menu Convert to UPPER CASE	`Ctrl` + `↑ Shift` + `U`
Search menu Go to matching brace (caret must be on a brace)	`Ctrl` + `B`
Edit menu Launch CallTip ListBox	`Ctrl` + `Space`
Edit menu Launch function completion ListBox	`Ctrl` + `↑ Shift` + `Space`
Edit menu Launch path completion ListBox	`Ctrl` + `Alt` + `Space`
Edit menu Launch word completion ListBox	`Ctrl` + `⤶ Enter`
Edit menu Text direction RTL	`Ctrl` + `Alt` + `R`
Edit menu Text Direction LTR	`Ctrl` + `Alt` + `L`
Incremental search widget Next match (same as > button)	`⤶ Enter`
Incremental search widget Previous match (same as < button)	`↑ Shift` + `⤶ Enter`
Edit menu Insert new unindented line above current	`Ctrl` + `Alt` + `⤶ Enter`
Edit menu Insert new unindented line below current	`Ctrl` + `Alt` + `↑ Shift` + `⤶ Enter`
Search menu Launch find dialog	`Ctrl` + `F`
Search menu Launch find and replace dialog	`Ctrl` + `H`
Search menu Find next	`F3`
Search menu Find previous	`↑ Shift` + `F3`
Search menu Find in files	`Ctrl` + `↑ Shift` + `F`
Search menu Switch to search results window	`F7`
Search menu Find (volatile) next	`Ctrl` + `Alt` + `F3`
Search menu Find (volatile) previous	`Ctrl` + `Alt` + `↑ Shift` + `F3`
Search menu Select and find next	`Ctrl` + `F3`
Search menu Select and find previous	`Ctrl` + `↑ Shift` + `F3`
Search menu Go to next found	`F4`
Search menu Go to previous found	`↑ Shift` + `F4`
Search menu Incremental search	`Ctrl` + `↑ Shift` + `I`
Search menu ...<keybs>5</keybs>: Jump up to next text marked. Use <keybs>0</keybs> for default found style	`Ctrl` + `↑ Shift` + `1`
Search menu Toggle bookmark	`Ctrl` + `F2`
Search menu Go to next bookmark	`F2`
Search menu Go to previous bookmark	`↑ Shift` + `F2`
Search menu Select all between matching braces (caret must be on a brace)	`Ctrl` + `Alt` + `B`
View menu Zoom in and zoom out	`Ctrl` + `+`
View menu Zoom in and zoom out	`Ctrl` + `-`
View menu Zoom in and zoom out	`Ctrl` + `Mouse wheel up and down`
View menu Restore the original size from zoom	`Ctrl` + `/`
View menu Toggle full screen mode	`F11`
View menu Toggle post-it mode	`F12`
View menu Collapse the current level	`Ctrl` + `Alt` + `F`
Run menu Open in Safari	`Ctrl` + `Alt` + `↑ Shift` + `F`
View menu Fold all	`Alt` + `0`
View menu ...to <keybs>8</keybs>: Collapse the level (1-8)	`Alt` + `1`
View menu Unfold all	`Alt` + `↑ Shift` + `0`
View menu ...<keybs>8</keybs> Uncollapse the level (1~8)	`Alt` + `↑ Shift` + `1`
Macro menu Start to record / stop recording the macro	`Ctrl` + `↑ Shift` + `R`
Macro menu Play recorded macro	`Ctrl` + `↑ Shift` + `P`
Macro menu Trim trailing and save	`Alt` + `↑ Shift` + `S`
Run menu Launch run dialog	`F5`
Run menu Get PHP help	`Alt` + `F1`
Run menu Google search	`Alt` + `F2`
Run menu Wikipedia search	`Alt` + `F3`
Run menu Open file (name at cursor)	`Alt` + `F5`
Run menu Open file in another instance (name at cursor)	`Alt` + `F6`
Run menu Open in Chrome	`Ctrl` + `Alt` + `↑ Shift` + `R`
Run menu Open in Firefox	`Ctrl` + `Alt` + `↑ Shift` + `X`
Run menu Open in IE	`Ctrl` + `Alt` + `↑ Shift` + `I`
Run menu Send via Outlook	`Ctrl` + `Alt` + `↑ Shift` + `O`
? menu About	`F1`
? menu Help contents	`↑ Shift` + `F1`
Mouse gestures (on bookmark margin) Toggle bookmark	`Mouse left click`
Mouse gestures (on fold point) Uncollapse this fold and all those below	`↑ Shift` + `Mouse left click`
Mouse gestures Pop up context menu	`Mouse right click`
Mouse gestures (on location pane, status bar) Go to line	`Mouse double click`
Mouse gestures Select line	`Mouse triple click`

Similar combinations for other applications

PyCharm 2018.2

Move through the most recent change points.

Navigation in source code

`Ctrl` + `↑ Shift` + `⬅ Backspace`

jEdit

Delete from caret to beginning; end of line.

Text editing

`Ctrl` + `↑ Shift` + `⬅ Backspace`

IntelliJ IDEA (Windows, Linux)

Navigate to last edit location

Navigation

`Ctrl` + `↑ Shift` + `⬅ Backspace`

LibreOffice Impress

Delete text to beginning of sentence

Editing text

`Ctrl` + `↑ Shift` + `⬅ Backspace`

LibreOffice Writer

Delete text to beginning of sentence

General

`Ctrl` + `↑ Shift` + `⬅ Backspace`

Android Studio

Go to last edit location

Navigating and searching

`Ctrl` + `↑ Shift` + `⬅ Backspace`

Opera

Up

Navigation: Site navigation

`Ctrl` + `↑ Shift` + `⬅ Backspace`

Notepad2

Delete line left

Line

`Ctrl` + `↑ Shift` + `⬅ Backspace`

Notepad++

Edit menu

Delete to start of line

Ctrl + ↑ Shift + ⬅ Backspace

All hotkeys for Notepad++

File menu

Open file

Ctrl + O

File menu

New file

Ctrl + N

File menu

Save file

Ctrl + S

File menu

Save as

Ctrl + Alt + S

File menu

Save all

Ctrl + ↑ Shift + S

File menu

Print

Ctrl + P

File menu

Exit

Alt + F4

File menu

Next document (also shows list of open files). Can be disabled - see Settings/Preferences/Global

Ctrl + ⭾ Tab

File menu

Previous document (also shows list of open files). Can be disabled - see above

Ctrl + ↑ Shift + ⭾ Tab

Search menu

...<keybs>5</keybs>: Jump down to next text marked. Use <keybs>0</keybs> for default found style

Ctrl + 1

File menu

Next document

Ctrl + Page Up

File menu

Previous document

Ctrl + Page Down

File menu

Close current document

Ctrl + W

Edit menu

Copy

Ctrl + C

Edit menu

Copy

Ctrl + Insert

Edit menu

Copy current line to clipboard

Ctrl + ↑ Shift + T

Edit menu

Cut

Ctrl + X

Edit menu

Cut

↑ Shift + Del

Edit menu

Paste

Ctrl + V

Edit menu

Paste

↑ Shift + Insert

Edit menu

Undo

Ctrl + Z

Edit menu

Undo

Alt + ⬅ Backspace

Edit menu

Redo

Ctrl + Y

Edit menu

Select all

Ctrl + A

Edit menu

Column mode select

Alt + ↑ Shift + ← ↑ → ↓

`Ctrl` + `↑ Shift` + `⬅ Backspace`

`Ctrl` + `O`

`Ctrl` + `N`

`Ctrl` + `S`

`Ctrl` + `Alt` + `S`

`Ctrl` + `↑ Shift` + `S`

`Ctrl` + `P`

`Alt` + `F4`

`Ctrl` + `⭾ Tab`

`Ctrl` + `↑ Shift` + `⭾ Tab`

`Ctrl` + `1`

`Ctrl` + `Page Up`

`Ctrl` + `Page Down`

`Ctrl` + `W`

`Ctrl` + `C`

`Ctrl` + `Insert`

`Ctrl` + `↑ Shift` + `T`

`Ctrl` + `X`

`↑ Shift` + `Del`

`Ctrl` + `V`

`↑ Shift` + `Insert`

`Ctrl` + `Z`

`Alt` + `⬅ Backspace`

`Ctrl` + `Y`

`Ctrl` + `A`

`Alt` + `↑ Shift` + `← ↑ → ↓`

`Alt` + `Mouse left click`

`Ctrl` + `Mouse left click`

`Alt` + `C`

`Ctrl` + `D`

`Ctrl` + `T`

`Ctrl` + `↑ Shift` + `↑`

`Ctrl` + `↑ Shift` + `↓`

`Ctrl` + `L`

`Ctrl` + `I`

`Ctrl` + `J`

`Ctrl` + `G`

`Ctrl` + `Q`

`Ctrl` + `↑ Shift` + `Q`

`Ctrl` + `K`

`Ctrl` + `↑ Shift` + `K`

`⭾ Tab`

`↑ Shift` + `⭾ Tab`

`Ctrl` + `⬅ Backspace`

`Ctrl` + `Del`

`Ctrl` + `↑ Shift` + `⬅ Backspace`

`Ctrl` + `↑ Shift` + `Del`

`Ctrl` + `U`

`Ctrl` + `↑ Shift` + `U`