Slack (MacOS)

Navigation Controls

Previous Unread Channel

Option + Shift + Up Arrow

All hotkeys for Slack (MacOS)

Navigation Controls
Zoom in/Zoom out

Command + + / Command + -

Navigation Controls
Scroll Up

PgUp

Navigation Controls
Scroll Down

PgDn

Navigation Controls
Quick Switcher

Command + K

Navigation Controls
Preferences

Command + ,

Navigation Controls
Previous Channel Visited

Command + [

Navigation Controls
Next Channel Visited

Command + ]

Navigation Controls
Previous Unread Channel

Option + Shift + Up Arrow

Navigation Controls
Next Unread Channel

Option + Shift + Down Arrow

Navigation Controls
Previous Channel

Option + Up Arrow

Navigation Controls
Next Channel

Option + Down Arrow

Navigation Controls
Open or Close Right Pane

Command + .

Navigation Controls
Direct Message Menu

Command + Shift + K

Navigation Controls
Open All Threads view

Command + Shift + T

Navigation Controls
Toggle Full Screen View

Command + Shift + F

Navigation Controls
Search the current Channel/Conversation

Command + F

Navigation Controls
Starred Item

Command + Shift + S

Navigation Controls
Directory

Command + Shift + E

Navigation Controls
Activity

Command + Shift + M

Navigation Controls
Open list of Keyboard shortcuts

Command + /

Unread Navigation
Toggle Current Channel read/Unread

R

Unread Navigation
Move between Channels

Left Arrow / Right Arrow

Unread Navigation
Open all Unread View

Command + Shift + A

Unread Navigation
Mark Msg as Unread

Option + Click Msg

Switch Teams(Desktop App Only)
Switch to Next Team

Command + Shift + ]

Switch Teams(Desktop App Only)
Switch to Previous Team

Command + Shift + [

Switch Teams(Desktop App Only)
Switch to A Specific team

Command + 1..9

Mark Message
Mark All Messages in Current Channel

Esc

Mark Message
Mark All Messages As Read

Shift + Esc

Mark Message
Set Msg to Oldest Unread Message

Option + Click Msg

Message Shortcuts
Reprint your last slash command in a channel

Tab

Message Shortcuts
Select Text to Beginning of Current Line

Shift + Up Arrow

Message Shortcuts
Select Text to End of Current Line

Shift + Down Arrow

Message Shortcuts
Add Emoji Reactions to A Message

Command + Shift + \

Message Shortcuts
Create a new line in your message

Shift + Enter

Message Shortcuts
Edit Your Last Message

Up Arrow

Message Autocomplete
Autocomplete Username

@character + Tab

Message Autocomplete
Autocomplete Channel

#character + Tab

Message Autocomplete
Autocomplete Emoji

:character + Tab

Files and Snippets
Upload a File

Command + U

Files and Snippets
Create a new snippet

Command + Enter

Call Actions
Mute On/Off

M

Call Actions
Video On/Off

V

Call Actions
Show Invite List

A

Call Actions
View Channel sharing Options

S

Call Actions
View and Select Emoji Reactions

E + 1..9

Similar combinations for other applications

Mac OS Sierra 10.12 (MacOS)
Extend text selection to the beginning of the current paragraph, then to the beginning of the following paragraph if pressed again.
Document Shortcuts

Option + Shift + Up Arrow

JetBrains RubyMine (MacOS)
Move Line(Selection) Up/Down
Editing Shortcuts

Option + Shift + Up Arrow / Down Arrow

JetBrains PyCharm (MacOS)
Move Line(Selection) Up/Down
Editing Shortcuts

Option + Shift + Up Arrow / Down Arrow

JetBrains AppCode (MacOS)
Move Line(Selection) Up/Down
Editing Shortcuts

Option + Shift + Up Arrow / Down Arrow

InCopy CC (MacOS)
Increase/Decrease baseline shift (horizontal text)
Working with Text

Option + Shift + Up Arrow / Down Arrow

Garageband 10 (MacOS)
Transpose selected notes up one octave
MIsellaneous Shortcuts

Option + Shift + Up Arrow

Xamarin Studio (MonoDevelop) (MacOS)
Expand Selection
Text Editor

Option + Shift + Up Arrow