TextRoom

General

Change font size

`Ctrl` + `↑ ↓`

All hotkeys for TextRoom

General Help screen	`F1`
General Options and Settings screen	`F2`
General About	`F3`
General Check Spelling	`F5`
General Scratchpad	`F6`
General MiniFlo	`F7`
General GetAWord	`F8`
General MusicRoom	`F9`
General Export to Google Docs	`F10`
General Fullscreen on/off	`F11`
General Quit or exit fullscreen, close About and Help dialogs	`Esc`
General Minimize TextRoom	`Ctrl` + `M`
General Quit	`Ctrl` + `Q`
General New	`Ctrl` + `N`
General Open	`Ctrl` + `O`
General Save	`Ctrl` + `S`
General Save as	`Ctrl` + `↑ Shift` + `S`
General Print	`Ctrl` + `P`
General Insert image	`Ctrl` + `Alt` + `I`
General Cut	`Ctrl` + `X`
General Copy	`Ctrl` + `C`
General Paste	`Ctrl` + `V`
General Select all	`Ctrl` + `A`
General Undo	`Ctrl` + `Z`
General Redo	`Ctrl` + `↑ Shift` + `Z`
General Change the current format	`Ctrl` + `W`
General Bold	`Ctrl` + `B`
General Italic	`Ctrl` + `I`
General Underline	`Ctrl` + `U`
General Change font size	`Ctrl` + `↑ ↓`
General Align right	`Ctrl` + `R`
General Align left	`Ctrl` + `L`
General Align justify	`Ctrl` + `J`
General Align center	`Ctrl` + `E`
General Go back to cursor position	`↑ Shift` + `F4`
General Find	`Ctrl` + `F`
General Find next	`F4`
General Find previous	`Ctrl` + `F4`
General Insert date	`Ctrl` + `D`
General Insert time	`Ctrl` + `T`

Similar combinations for other applications

RStudio

Jump to Start/End

Editing (Console and Source)

`Ctrl` + `↑ ↓`

LDCad

2: While inserting/moving parts it will rotate the 'floating' parts 45 degrees around the screens horizontal axis

Editor

`Ctrl` + `↑ ↓`

RStudio (Mac)

Scroll diff view

Git / SVN

`Ctrl` + `↑ ↓`

Xyplorer

In lists with shiftable positions: shift selected item up/down.

Other Shortcuts

`Ctrl` + `↑ ↓`

Ableton Live 10

Move Nonadjacent Scenes Without Collapsing

Session View commands

`Ctrl` + `↑ ↓`

Lacerte

Scroll through the Client list without moving the cursor from the highlighted client

Client List

`Ctrl` + `↑ ↓`

Adobe Illustrator

Increase/decrease the selected value by a fraction

Character and Paragraph panels

`Ctrl` + `↑ ↓`

Asana

Move Up/Down

Task Actions

`Ctrl` + `↑ ↓`

Quicken 2018

QuickFill list, scroll up or down

Register and Write Checks

`Ctrl` + `↑ ↓`

Adobe Lightroom Classic

Increase/decrease flag status

Rating and filtering photos

`Ctrl` + `↑ ↓`

Adobe Lightroom Classic (Mac)

Increase/decrease flag status

Rating and filtering photos

`Ctrl` + `↑ ↓`

Black Desert Online

Blur / sharpen

Screenshot mode

`Ctrl` + `↑ ↓`

JSFiddle

Switch between editor windows

General

`Ctrl` + `↑ ↓`

Inkscape

move cursor by one paragraph

Text tool

`Ctrl` + `↑ ↓`

MindMeister

Move topic up / down

Move and rearrange

`Ctrl` + `↑ ↓`

Google Sheets

Resize formula bar

Use formulas

`Ctrl` + `↑ ↓`

Sumatra PDF

Previous / next page

Navigation

`Ctrl` + `↑ ↓`

Vuze

Move selected torrent(s) up/down

General

`Ctrl` + `↑ ↓`

Visual Studio Code (Mac)

Scroll line up/down

Basic editing

`Ctrl` + `↑ ↓`

Visual Studio Code (Linux)

Scroll line up/down

Basic editing

`Ctrl` + `↑ ↓`

Visual Studio Code (Windows)

Scroll up/down

Integrated terminal

`Ctrl` + `↑ ↓`

Tinkercad

Move selection vertically (z axis)

General

`Ctrl` + `↑ ↓`

Eclipse

Scroll editor without changing cursor position

Navigation in editor window

`Ctrl` + `↑ ↓`

Blender

Maximize current view toggle

General

`Ctrl` + `↑ ↓`

Everything

Navigate item focus

Result list

`Ctrl` + `↑ ↓`

Trillian

Access lines you've recently sent

General

`Ctrl` + `↑ ↓`

GOM Player

Wave volume up/down

Volume control

`Ctrl` + `↑ ↓`

Yahoo Mail

Move focus up or down the list (preserving selection)

Inbox

`Ctrl` + `↑ ↓`

Outlook 2016 and Outlook 2013

Go to the next or previous item without extending the selection

Views: Table view

`Ctrl` + `↑ ↓`