Signal
Source⌘K
Display
Zoom in⌘=
Zoom out⌘-
Messages
Default action for selected message↩
View selected message details⌘D
Toggle reply to selected message⇧⌘R
Toggle emoji-reaction picker for selected message⇧⌘E
Save attachment from selected message⌘S
Forward selected messages⇧⌘S
Open context menu for selected message⌘F12
Delete selected message⇧⌘D
Composer
Add newline to message⇧↩
Expand composer⇧⌘K
Send (in expanded composer)⌘↩
Attach file⌘U
Remove draft link preview⌘P
Remove all draft attachments⇧⌘P
Edit the previous message↑
Mark selected text as bold⌘B
Mark selected text as italic⌘I
Mark selected text as strikethrough⇧⌘X
Mark selected text as monospace⌘E
Mark selected text as a spoiler⇧⌘B
Calling
Toggle mute on and off⇧M
Toggle video on and off⇧V
Accept call with video (video calls only)⌃⇧V
Accept call without video⌃⇧A
Decline call⌃⇧D
Start voice call⌃⇧C
Start video call⌃⇧Y
End call⌃⇧E