Insert a line break (in a message)

All hotkeys for Apple Messages

Messages Open Messages preferences	⌘ Cmd + ,
Messages Hide Messages	⌘ Cmd + H
Messages Hide everything except Messages	⌥ Option + ⌘ Cmd + H
Messages Quit Messages	⌘ Cmd + Q
Messages Start a new message	⌘ Cmd + N
Messages Go to a chat room	⌘ Cmd + R
Messages Open the Messages window	⌘ Cmd + 0
Messages Close the Messages window	⌘ Cmd + W
Messages Print the conversation	⌘ Cmd + P
Messages Search all conversations for matching text	⌘ Cmd + F
Messages Clear the transcript (delete a conversation without closing it)	⌥ Option + ⌘ Cmd + K
Messages Open the Emoji & Symbols window	Control + ⌘ Cmd + Space
Messages Minimize a window	⌘ Cmd + M
Messages Minimize all windows	⌥ Option + ⌘ Cmd + M
Messages Open the buddy list window	⌘ Cmd + 1
Messages Open the File Transfers window	⌥ Option + ⌘ Cmd + L
Messages Enter full-screen view	Control + ⌘ Cmd + F
Messages Set your status to Offline in the buddy list	Control + ⌘ Cmd + O
Messages Set your status to Invisible in the buddy list	Control + ⌘ Cmd + I
Messages Set your status to Available in the buddy list	Control + ⌘ Cmd + A
Messages Set your status to Away in the buddy list	Control + ⌘ Cmd + W
Conversation shortcuts Make the text bigger	⌘ Cmd + +
Conversation shortcuts Make the text smaller	⌘ Cmd + -
Conversation shortcuts Insert a line break (in a message)	⌥ Option + ⤶ Enter
Conversation shortcuts Copy the selected text	⌘ Cmd + C
Conversation shortcuts Paste copied text	⌘ Cmd + V
Conversation shortcuts Open the Spelling and Grammar window	↑   Shift + ⌘ Cmd + :
Conversation shortcuts Check the text field for spelling and grammar issues	⌘ Cmd + ;
Conversation shortcuts Select the next conversation	Control + ⭾ Tab
Conversation shortcuts Select the previous conversation	Control + ↑   Shift + ⭾ Tab
Conversation shortcuts Send an email to a selected person in the conversation	⌥ Option + ⌘ Cmd + E
Conversation shortcuts Show video effects (while in a video call in Messages)	↑   Shift + ⌘ Cmd + E
Conversation shortcuts (first, select the message) Delete a single message	Del
Conversation shortcuts Close all conversations	⌥ Option + ↑   Shift + ⌘ Cmd + W

Similar combinations for other applications

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RStudio (Mac)

Run current line/selection (retain cursor position)

Source

⌥ Option + ⤶ Enter

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Tableau (Mac)

Switch in and out of Presentation Mode

Managing workbooks, sheets, and files (Tableau Desktop)

⌥ Option + ⤶ Enter

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Adobe Illustrator (Mac)

Apply a value and copy object

Transform panel

⌥ Option + ⤶ Enter

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DataQuest

Running code

Mac

⌥ Option + ⤶ Enter

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Adobe Lightroom Classic (Mac)

Preview slide show

Working in the Slideshow module

⌥ Option + ⤶ Enter

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IntelliJ IDEA (macOS)

Show intention actions and quick-fixes

Editing

⌥ Option + ⤶ Enter

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Apple iBooks

Insert a line break

Create cell references in formulas

⌥ Option + ⤶ Enter

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Apple GarageBand

Go to end of last region

General

⌥ Option + ⤶ Enter

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Google Sheets (Mac)

Open hyperlink

Navigate spreadsheet

⌥ Option + ⤶ Enter

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Apple Pages

Insert a row at the bottom of the table

Working with tables

⌥ Option + ⤶ Enter

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Visual Studio Code (Mac)

Select all occurences of Find match

Search and replace

⌥ Option + ⤶ Enter

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iTunes 11 for Mac

(after typing in Search field) Initiate a search in the iTunes Store

iTunes Store

⌥ Option + ⤶ Enter

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