From OpenOffice.org Wiki
Shortcut keys in the Gallery
| Shortcut Keys | Result
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| Tab | Moves between areas.
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| Shift+Tab | Moves between areas (backwards).
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Shortcut keys in the New Theme area of the Gallery
| Shortcut keys | Result
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| Up arrow | Moves the selection up.
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| Down arrow | Moves the selection down.
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| Ctrl+Enter | Opens the Properties dialog.
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| Shift+F10 | Opens a context menu.
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| Ctrl+U | Refreshes the selected theme.
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| Ctrl+R | Opens the Enter Title dialog.
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| Ctrl+D | Deletes the selected theme.
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| Insert | Inserts a new theme.
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Shortcut keys in the Gallery preview area
| Shortcut keys | Result
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| Home | Jumps to the first entry.
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| End | Jumps to the last entry.
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| Left Arrow | Selects the next Gallery element on the left.
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| Right Arrow | Selects the next Gallery element on the right.
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| Up Arrow | Selects the next Gallery element above.
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| Down Arrow | Selects the next Gallery element below.
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| Page Up | Scrolls up one screen.
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| Page Down | Scrolls down one screen.
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| Ctrl+Shift+Insert | Inserts the selected object as a linked object into the current document.
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| Ctrl+I | Inserts a copy of the selected object into the current document.
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| Ctrl+T | Opens the Enter Title dialog.
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| Ctrl+P | Switches between themes view and object view.
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| Spacebar | Switches between themes view and object view.
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| Enter | Switches between themes view and object view.
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| Step backward | Switches back to main overview (only in object view).
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