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Mattermost

Go to the next channel

OptionDown arrow

Mac Desktop app Mattermost

Practice this

In Mattermost this is go to the next channel. It applies here: channel sidebar.

Where it works: Channel sidebar

Every documented variant

Variants of this shortcut
System	Environment	Keys
Mac	Desktop app	`OptionDown arrow`
Windows	Desktop app	`AltDown arrow`

Where this comes from

Mattermost keyboard shortcuts

Documentation checked on 2026-09-12. That is a documentation review, not a test run inside the application.

More Mattermost shortcuts

Go to the previous unread channel Option + Shift + Up arrow
Go to the next unread channel Option + Shift + Down arrow
Open the find channels dialog Cmd + K
Open the direct messages dialog Cmd + Shift + K
Open the settings dialog Cmd + Shift + A
Open recent mentions Cmd + Shift + M
Focus the message box Cmd + Shift + L
Open or close the right sidebar Cmd + .

See every Mattermost shortcut

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