TAB key is usually used to indent/outdent a text/paragraph/bulleted lists and numbered lists. In Confluence editor, this key does not apply for indenting unless it is used with bulleted lists and numbered lists. To apply this onto a plain text/paragraph, as a workaround you can make use of Indent User Macro. I've tested this out in Confluence 5.1.3 and it works just fine.
Hope that helps.
...ollected feedback from users around the lack of shortcuts, and we’re here to address that: In next-gen projects, I miss the keyboard shortcuts badly. This is particularly true on the Board, but also i...
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