Ace Editor

Multicursor

Add multi-cursor below

Ctrl + Alt +

All hotkeys for Ace Editor

Line operations
Remove line

Ctrl + D

Line operations
Copy lines down

Alt + ↑   Shift +

Line operations
Copy lines up

Alt + ↑   Shift +

Line operations
Move lines down

Alt +

Line operations
Move lines up

Alt +

Line operations
Remove to line end

Alt + Del

Line operations
Remove to linestart

Alt + ⬅ Backspace

Line operations
Remove word left

Ctrl + ⬅ Backspace

Line operations
Remove word right

Ctrl + Del

Selection
Select all

Ctrl + A

Selection
Select left

↑   Shift +

Selection
Select right

↑   Shift +

Selection
Select word left

Ctrl + ↑   Shift +

Selection
Select word right

Ctrl + ↑   Shift +

Selection
Select line start

↑   Shift + Home

Selection
Select line end

↑   Shift + End

Selection
Select to line end

Alt + ↑   Shift +

Selection
Select to line start

Alt + ↑   Shift +

Selection
Select up

↑   Shift +

Selection
Select down

↑   Shift +

Selection
Select page up

Shift + Page Up

Selection
Select page down

Shift + Page Down

Selection
Select to start

Ctrl + ↑   Shift + Home

Selection
Select to end

Ctrl + ↑   Shift + End

Selection
Duplicate selection

Ctrl + ↑   Shift + D

Selection
Select to matching bracket

Ctrl + ↑   Shift + P

Multicursor
Add multi-cursor above

Ctrl + Alt +

Multicursor
Add multi-cursor below

Ctrl + Alt +

Multicursor
Add next occurrence to multi-selection

Ctrl + Alt +

Multicursor
Add previous occurrence to multi-selection

Ctrl + Alt +

Multicursor
Move multicursor from current line to the line above

Ctrl + Alt + ↑   Shift +

Multicursor
Move multicursor from current line to the line below

Ctrl + Alt + ↑   Shift +

Multicursor
Remove current occurrence from multi-selection and move to next

Ctrl + Alt + ↑   Shift +

Multicursor
Remove current occurrence from multi-selection and move to previous

Ctrl + Alt + ↑   Shift +

Multicursor
Select all from multi-selection

Ctrl + ↑   Shift + L

Go to
Go to left

Go to
Go to right

Go to
Go to word left

Ctrl +

Go to
Go to word right

Ctrl +

Go to
Go line up

Go to
Go line down

Go to
Go to line start

Alt +

Go to
Go to line start

Home

Go to
Go to line end

Alt +

Go to
Go to line end

End

Go to
Go to page up

Page Up

Go to
Go to page down

Page Down

Go to
Go to start

Ctrl + Home

Go to
Go to end

Ctrl + End

Go to
Go to line

Ctrl + L

Go to
Scroll line down

Ctrl +

Go to
Scroll line up

Ctrl +

Go to
Go to matching bracket

Ctrl + P

Find / replace
Find

Ctrl + F

Find / replace
Replace

Ctrl + H

Find / replace
Find next

Ctrl + K

Find / replace
Find previous

Ctrl + ↑   Shift + K

Folding
Fold selection

Alt + L

Folding
Fold selection

Ctrl + F1

Folding
Unfold

Alt + ↑   Shift + L

Folding
Unfold

Ctrl + ↑   Shift + F1

Folding
Fold all

Alt + 0

Folding
Unfold all

Alt + ↑   Shift + 0

Other
Indent

⭾ Tab

Other
Outdent

↑   Shift + ⭾ Tab

Other
Undo

Ctrl + Z

Other
Redo

Ctrl + ↑   Shift + Z

Other
Redo

Ctrl + Y

Other
Show the settings menu

Ctrl + ,

Other
Toggle comment

Ctrl + /

Other
Transpose letters

Ctrl + T

Other
Enter full screen

Ctrl + ⤶ Enter

Other
Change to lower case

Ctrl + ↑   Shift + U

Other
Change to upper case

Ctrl + U

Other
Overwrite

Insert

Other
Macros replay

Ctrl + ↑   Shift + E

Other
Macros recording

Ctrl + Alt + E

Other
Delete

Del

Similar combinations for other applications


Affinity Photo
Precise Increase Paragraph Leading
Text shortcuts

Ctrl + Alt +


RStudio (Mac)
Add Cursor Below Current Cursor
Source

Ctrl + Alt +


RStudio
Add Cursor Below Current Cursor
Source

Ctrl + Alt +


Openbox
Open the desktop switching dialog, to go to the desktop below the current one (This will only be useful if you use a pager to set up a desktop layout with multiple rows)
General

Ctrl + Alt +


Ubuntu
Unfolds your workspace cube allowing you to see more than one of your workspaces at once, using the left and right cursor keys with this active will allow you to select the workspace you wish to use
When Desktop Effects enabled

Ctrl + Alt +


Zendesk Support
Move to next ticket
Tickets

Ctrl + Alt +


Xfce
Bottom workspace
Switching workspace

Ctrl + Alt +


ArtRage Studio Pro
Merge Layer Down
Layer Commands

Ctrl + Alt +


PyCharm 2018.2
Navigate to a next found item.
Navigation in source code

Ctrl + Alt +


Nuke
Go to min version
Project / tags / versions bin

Ctrl + Alt +


Atom (Windows)
editor:add-selection-below
All shortcuts

Ctrl + Alt +


Kindle for PC
Cell below
Navigating Within Tables (NVDA)

Ctrl + Alt +


Linux Mint
Open applications in the current workspace
Frequently used shortcuts

Ctrl + Alt +


Chromebook and Chrome OS
Go to bottom of page
Page and web browser

Ctrl + Alt +


AWS Cloud9 IDE (Windows)
Add Cursor Below
Cursor

Ctrl + Alt +


NetBeans
Go to calling method
Debugging

Ctrl + Alt +


LibreOffice Writer
Move the active paragraph or selected paragraphs down one paragraph
Paragraphs and Heading Levels

Ctrl + Alt +


Microsoft Visual Studio 2017 (All shortcuts)
Arrow Table.RowBelow
HTML Editor Design View

Ctrl + Alt +


Qt Creator
Copy line down
Editing

Ctrl + Alt +


Guitar Pro
Move down
Track

Ctrl + Alt +


REAPER
Track: Go to next track
Section: Main

Ctrl + Alt +


Sublime Text
Column selection down
Editing

Ctrl + Alt +


Delphi
Navigate to next method implementation in lexical order in this source unit, or within the class to which scope has been limited using Ctrl + Q + L
General

Ctrl + Alt +


MediaMonkey
Volume Down
General

Ctrl + Alt +


SQL Server Management Studio (SSMS)
Display a popup listing all open windows
Windows management

Ctrl + Alt +


NVDA Screen Reader
Cell below
Tables

Ctrl + Alt +


MusicBee
Volume down
General

Ctrl + Alt +


uTorrent
Move torrent down in queue
General

Ctrl + Alt +


iTunes 11 for Windows
Mute the sound (song keeps playing)
Control menu

Ctrl + Alt +


GOM Player
Decrease equalizer level
Volume control

Ctrl + Alt +


Narrator
Move to the next cell in a column
Scan mode keyboard commands

Ctrl + Alt +