InformatiQ

I miss this feature in opera, to be able to relad all the tabs with one click without having to go to every to each tab and refresh it

here's the solution i found it at tech-forums.net

Tools > Preferences (Ctrl+F12) > Advanced > Shortcuts > Under Keyboard shortcuts (bottom), click Edit "Opera Standard" > Expand "Application (defaults)" > Click New > Under "Input context and shortcuts", enter "Platform Windows-Unix-MCE, F5 ctrl" > Under "Actions", enter "Reload all pages" > Click OK > Click OK