RStudio
Unfold every section
In RStudio, Shift + Alt + O will unfold every section. On a Mac, press Cmd + Shift + Option + O instead.
Where it works: Source editor
Every documented variant
| System | Environment | Keys |
|---|---|---|
| Mac | Desktop app | CmdShiftOptionO |
| Windows | Desktop app | ShiftAltO |
Where this comes from
Keyboard Shortcuts in the RStudio IDE - Posit Support
Documentation checked on 2026-09-14. That is a documentation review, not a test run inside the application.