Validate source of active page or frame

`Ctrl` + `Alt` + `V`

All hotkeys for Opera

Threads Collapse all threads	`↑ Shift` + `←`
Threads Expand all threads	`↑ Shift` + `→`
Essentials Select the next link or form input in that direction	`↑ Shift` + `↑`
Essentials Select the next link or form input in that direction	`↑ Shift` + `↓`
Panel keys: Actions Open transferred file	`⤶ Enter`
Panel keys: Actions Compose message to contact	`↑ Shift` + `⤶ Enter`
Navigation: History Go to previous page in history	`Z`
Navigation: History Go to previous page in history	`Alt` + `←`
Navigation: History Go to next page in history	`X`
Navigation: History Go to next page in history	`Alt` + `→`
Loading keys: Transmission Reload (get latest version of) page	`F5`
Form keys Right-adjust text in form	`Ctrl` + `R`
E-mail keys: Navigation Set focus to message list	`F8`
E-mail keys: Navigation Set focus to message	`F9`
Page keys: Basics Browse in new tab	`Ctrl` + `T`
Tab keys: Switching Cycle to next tab (defaults to recently used order)	`Ctrl` + `⭾ Tab`
Page keys: Basics Close active tab	`Ctrl` + `W`
Panel keys: Activation Activate panels for keyboard navigation	`F7`
Panel keys: Activation Toggle last active panel	`↑ Shift` + `F4`
Panel keys: Activation Toggle last active panel with panel selector	`F4`
Navigation: History Go to previous page in history	`⬅ Backspace`
Movement Move one line up	`↑`
Movement Move one line down	`↓`
Movement Move one character to the right	`→`
Movement Move one character to the left	`←`
Movement Move one screen-full up	`Page Up`
E-mail keys: Navigation Move one screen-full up	`↑ Shift` + `Space`
Movement Move one screen-full down	`Page Down`
E-mail keys: Navigation Move one screen-full down, then go to next unread	`Space`
Movement Move one screen-full to the left	`Ctrl` + `Page Up`
Movement Move one screen-full to the right	`Ctrl` + `Page Down`
Movement Go to top	`Home`
Movement Go to bottom	`End`
Form keys Go to next element in form	`⭾ Tab`
Form keys Go to previous element in form	`↑ Shift` + `⭾ Tab`
Focus Edit item properties	`Alt` + `⤶ Enter`
Text keys: Editing Toggle text-style italic	`Ctrl` + `I`
Focus keys Restore original address in address field and set focus to page	`Esc`
Focus Display context (right-click) menu	`Ctrl` + `M`
System keys Open file	`Ctrl` + `O`
E-mail keys: Reading and sending Save message draft (continue later)	`Ctrl` + `S`
System keys Save copy of page with all images and elements	`Ctrl` + `Alt` + `S`
System keys Print page	`Ctrl` + `P`
System keys Close Opera	`Ctrl` + `Q`
System keys Hide Opera	`Ctrl` + `H`
Text keys: Editing Undo recent changes	`Ctrl` + `Z`
Text keys: Editing Redo recent changes	`Ctrl` + `Y`
Text keys: Editing Copy selection to clipboard	`Ctrl` + `C`
Text keys: Editing Copy selection to clipboard	`Ctrl` + `Insert`
Text keys: Editing Move selection to clipboard	`Ctrl` + `X`
Text keys: Editing Move selection to clipboard	`↑ Shift` + `Del`
Text keys: Editing Paste from clipboard	`Ctrl` + `V`
Text keys: Editing Paste from clipboard	`↑ Shift` + `Insert`
Text keys: Editing Copy selected text to "Notes" panel	`Ctrl` + `↑ Shift` + `C`
Text keys: Editing Copy text in clipboard to "Notes" panel	`Ctrl` + `↑ Shift` + `V`
E-mail keys: Navigation Go to previous unread message	`Ctrl` + `U`
Text keys: Editing Select all	`Ctrl` + `A`
Text keys: Editing Delete selection (or character right of cursor)	`Del`
Loading keys: Access Paste and go in current or new tab	`Ctrl` + `B`
Help Search while viewing help page	`Ctrl` + `F`
Text keys: Find Find next instance of text	`Ctrl` + `G`
Text keys: Find Find next instance of text	`F3`
Text keys: Find Find previous instance of text	`Ctrl` + `↑ Shift` + `G`
Text keys: Find Find previous instance of text	`↑ Shift` + `F3`
Text keys: Find Search for text in links in page (press F9 first to set focus on page)	`,`
Text keys: Find Search for text in links in page (press F9 first to set focus on page)	`↑ Shift` + `/`
Text keys: Find Search for text in page (press F9 first to set focus on page)	`.`
Text keys: Find Search for text in page (press F9 first to set focus on page)	`/`
Loading keys: Access Go to your home page	`Ctrl` + `Space`
Loading keys: Access Go to your home page	`Alt` + `Home`
Loading keys: Access Enter a Web address	`F2`
Loading keys: Access Paste and go in background tab	`Ctrl` + `↑ Shift` + `B`
Loading keys: Access Enter nickname for fast bookmark access	`↑ Shift` + `F2`
Loading keys: Access Save page address as new bookmark	`Ctrl` + `D`
Link keys Save selected link as new bookmark	`Ctrl` + `↑ Shift` + `D`
Loading keys: Transmission Reload selected frame	`Alt` + `F5`
Loading keys: Transmission Reload selected frame	`Ctrl` + `↑ Shift` + `R`
Loading keys: Transmission Reload all open pages	`Ctrl` + `F5`
Loading keys: Transmission Reload all open pages	`Ctrl` + `Alt` + `R`
Loading keys: Transmission Read selected text using voice function	`V`
Navigation: History Go to next page in history	`Ctrl` + `→`
Navigation: History Go to next page in history	`Ctrl` + `]`
Navigation: History Go to previous page in history	`Ctrl` + `←`
Navigation: History Go to previous page in history	`Ctrl` + `[`
Navigation: History Rewind	`↑ Shift` + `Z`
Navigation: History Fast Forward	`↑ Shift` + `X`
Navigation: History Fast Forward	`↑ Shift` + `⬅ Backspace`
Navigation: History Show entire forward history	`Alt` + `X`
Navigation: History Show entire backward history	`Alt` + `Z`
Link keys Open selected link in background tab	`Ctrl` + `↑ Shift` + `Space`
Navigation: Site navigation Search	`Ctrl` + `↑ Shift` + `F`
Navigation: Site navigation Previous	`Ctrl` + `↑ Shift` + `←`
Navigation: Site navigation Next	`Ctrl` + `↑ Shift` + `→`
Navigation: Site navigation Up	`Ctrl` + `↑ Shift` + `⬅ Backspace`
Navigation: Site navigation Remove the last part of any Web address (such as a sub-directory) and go to that address	`Ctrl` + `⬅ Backspace`
Display modes Load and display all images	`I`
Display modes Toggle loading of images	`↑ Shift` + `I`
Display modes Toggle between "Author mode" and "User mode"	`↑ Shift` + `G`
Display modes Preview page as if printed	`↑ Shift` + `P`
Display modes Use entire screen for browsing	`F11`
Display modes Toggle "Fit to width"	`Ctrl` + `F11`
Display modes Pretend to be small-screen device	`↑ Shift` + `F11`
Source View page source	`Ctrl` + `F3`
Source View source of active frame	`Alt` + `F3`
Source Validate source of active page or frame	`Ctrl` + `Alt` + `V`
Source Validate source of active page or frame in the background	`Ctrl` + `Alt` + `↑ Shift` + `V`
Zooming Increase zoom % by steps of 10	`+`
Access keys (to <keybs>9</keybs>) Enter HTML access keys	`0`
Zooming Decrease zoom % by steps of 10	`-`
Zooming Decrease zoom % by steps of 10	`9`
Zooming Increase zoom % by steps of 100 (1000% is maximum)	`Ctrl` + `+`
Zooming Increase zoom % by steps of 100 (1000% is maximum)	`8`
Zooming Decrease zoom % by steps of 100 (20% is minimum)	`Ctrl` + `-`
Zooming Decrease zoom % by steps of 100 (20% is minimum)	`7`
Zooming Restore zoom to 100%	`*`
Zooming Restore zoom to 100%	`6`
Access keys (to <keybs>Z </keybs>	`A`
Link keys Select next link in page	`Ctrl` + `↓`
Link keys Select previous link in page	`Q`
Link keys Select previous link in page	`Ctrl` + `↑`
Panel keys: Actions Open bookmark in background tab	`Ctrl` + `↑ Shift` + `⤶ Enter`
Link keys Copy selected link address	`Ctrl` + `Alt` + `C`
E-mail keys: Reading and sending Send composed message	`Ctrl` + `↑ Shift` + `S`
Spatial navigation keys Navigate between links and form elements	`↑ Shift` + `← ↑ → ↓`
Spatial navigation keys Cycle through headers in page	`S`
Spatial navigation keys Cycle through headers in page	`W`
Spatial navigation keys Cycle through elements in page	`D`
Spatial navigation keys Cycle through elements in page	`E`
Spatial navigation keys Cycle through frames in page	`3`
Spatial navigation keys Cycle through frames in page	`↑ Shift` + `3`
Address bar keys Autocomplete Web address, by default adds "www." and ".com"	`Ctrl` + `⤶ Enter`
Focus keys Set focus to address field	`Ctrl` + `L`
Access keys Toggle HTML access keys	`↑ Shift` + `Esc`
Page keys: Basics Browse in duplicate of active tab	`Ctrl` + `Alt` + `↑ Shift` + `N`
Page keys: Basics Close active tab	`Ctrl` + `F4`
Application windows Close application window	`Ctrl` + `↑ Shift` + `W`
Application windows Close application window	`Alt` + `F4`
Page keys: Basics Close all open tabs	`Ctrl` + `Alt` + `W`
Page keys: Basics Close all open tabs except active	`Ctrl` + `↑ Shift` + `Alt` + `W`
Page keys: Basics Undo closing tab	`Ctrl` + `Alt` + `Z`
Application windows Browse in new application window	`Ctrl` + `N`
Tab keys: Switching Cycle to next tab (defaults to recently used order)	`Alt` + `Page Down`
Tab keys: Switching Cycle to previous tab (defaults to recently used order)	`Ctrl` + `↑ Shift` + `⭾ Tab`
Tab keys: Switching Cycle to previous tab (defaults to recently used order)	`Alt` + `Page Up`
Tab keys: Switching Switch to next tab on tab bar	`1`
Tab keys: Switching Switch to next tab on tab bar	`Ctrl` + `F6`
Tab keys: Switching Switch to previous tab on tab bar	`2`
Tab keys: Switching Switch to previous tab on tab bar	`Ctrl` + `↑ Shift` + `F6`
Tab keys: Arranging Cascade open tabs top-left to bottom-right	`↑ Shift` + `F5`
Tab keys: Arranging Tile open tabs left to right	`↑ Shift` + `F6`
Tab keys: Arranging Tile open tabs top to bottom	`Alt` + `F6`
Tab keys: Arranging Minimize active tab	`4`
Tab keys: Arranging Switch between restored and maximized tab	`5`
Tab keys: Arranging Restore all tabs	`Ctrl` + `↑ Shift` + `F3`
Tab keys: Arranging Minimize all tabs	`Ctrl` + `↑ Shift` + `F4`
Tab keys: Arranging Maximize all tabs	`Ctrl` + `↑ Shift` + `F5`
Panel keys: Activation Open "Search" panel	`Ctrl` + `1`
Panel keys: Activation Open "Bookmarks" panel	`Ctrl` + `2`
Panel keys: Activation Open "Mail" panel	`Ctrl` + `3`
Panel keys: Activation Open "Contacts" panel	`Ctrl` + `4`
Panel keys: Activation Open "Chat" panel	`Ctrl` + `5`
Panel keys: Activation Open "Notes" panel	`Ctrl` + `6`
Panel keys: Activation Open "Transfers" panel	`Ctrl` + `7`
Panel keys: Activation Open "History" panel	`Ctrl` + `8`
Panel keys: Activation Open "Links" panel	`Ctrl` + `9`
Panel keys: Activation Open "Windows" panel	`Ctrl` + `0`
Panel keys: Actions Mark all e-mail in selected view as read	`Ctrl` + `↑ Shift` + `A`
Preferences Edit your preferences	`Alt` + `P`
Preferences Edit your preferences	`Ctrl` + `F12`
Preferences Quickly edit most popular preferences	`F12`
Preferences Edit browser appearance	`↑ Shift` + `F12`
Bars Toggle scroll bars	`Ctrl` + `F7`
Bars Toggle address bar	`Ctrl` + `F8`
Address bar keys Show autocomplete drop-down list	`Alt` + `V`
Focus keys Set focus to search field	`↑ Shift` + `F8`
Focus keys Set focus to personal bar	`↑ Shift` + `F7`
Manager pages Manage view for search panel	`Ctrl` + `↑ Shift` + `1`
Manager pages Manage bookmarks	`Ctrl` + `↑ Shift` + `2`
Manager pages Manage bookmarks	`Ctrl` + `Alt` + `B`
Manager pages Manage e-mail	`Ctrl` + `↑ Shift` + `3`
Manager pages Manage e-mail	`Ctrl` + `Alt` + `M`
Manager pages Manage contacts	`Ctrl` + `↑ Shift` + `4`
Manager pages Manage contacts	`Ctrl` + `Alt` + `O`
Manager pages Manage view for chat panel	`Ctrl` + `↑ Shift` + `5`
Manager pages Manage notes	`Ctrl` + `↑ Shift` + `6`
Manager pages Manage notes	`Ctrl` + `Alt` + `E`
Manager pages Manage transfers	`Ctrl` + `↑ Shift` + `7`
Manager pages Manage transfers	`Ctrl` + `Alt` + `T`
Manager pages Manage history	`Ctrl` + `↑ Shift` + `8`
Manager pages Manage history	`Ctrl` + `Alt` + `H`
Manager pages Manage links	`Ctrl` + `↑ Shift` + `9`
Manager pages Manage links	`Ctrl` + `Alt` + `L`
E-mail keys: Navigation Go to next unread message	`Ctrl` + `J`
E-mail keys: Reading and sending Check e-mail	`Ctrl` + `K`
E-mail keys: Reading and sending Write new message	`Ctrl` + `E`
E-mail keys: Reading and sending Upload queued messages to mail server	`Ctrl` + `↑ Shift` + `K`
E-mail keys: Navigation Go to next message	`J`
E-mail keys: Navigation Go to previous message	`U`
E-mail keys: Navigation Go to next unread message	`H`
E-mail keys: Navigation Go to previous unread message	`Y`
E-mail keys: Navigation Scroll up in message body (even if focus on message list)	`Alt` + `↑`
E-mail keys: Navigation Scroll down in message body (even if focus on message list)	`Alt` + `↓`
Threads Mark thread as read	`M`
Threads Mark thread as read, go to next unread	`N`
Help Open Opera's help window	`F1`