These settings make Opera's user interface quicker to use and more helpful. Some of the settings are particularly useful for people who are visually or physically challenged.
Mouse gestures allow you to perform frequently used browse actions through simple mouse movements. If you don't use mouse gestures, and don't want to unintentionally perform mouse gestures, you can disable them.
When you double-click a word in a Web page, a context menu pops up where you can do things like translate and copy the text. If you don't want context menu to appear on double-clicking, you can disable it here, and then right-click the selected word to the get the menu instead.
One of the mouse gestures involves using first one mouse button then the other one, to go back and forward in page history. Left-handed users may want to switch the order of these buttons around.
Underlining makes it easier to see which list item the mouse is pointing at. List items include bookmarks, preference categories, file types, etc.
Opening dialog boxes at mouse position gives shorter mouse travel distance, and should enable faster interaction. If you leave this option unchecked Opera will either use the last location of the dialog or center it over the active window.
Learn more about mouse gestures
After using terminals, emacs and other UNIX programs, you get used to certain common UNIX keyboard shortcuts. By enabling this option you can use these keyboard combinations in Opera's many text boxes. Example: Ctrl + A Go to start of line.
When you type in Web addresses, recognition of addresses typed in earlier are displayed in a drop-down list accessible with the cursor keys or the mouse. This is called auto-completion, and saves you from having to type in entire addresses every time.
When navigating bookmarks in the Hotlist, you can press a key, for example E, to jump between items which all start with the letter E. If you turn on menu style item selection, the bookmark will open automatically if only one item corresponds with the key you pressed, that is only one item starts with the letter E.
When using the keyboard to navigate elements in Web pages, the active element is visually marked. You can choose either to put a border around the element or invert the entire element.
Screen reader compatibility is not available in Opera for Linux.
If you press Ctrl + Tab, you can cycle between the different windows in Opera. There are three different ways of cycling. The first two methods let you cycle windows using a menu, where the first of these methods sorts the menu by putting the most recently used windows on the top of the list. The last method lets you cycle through your windows without a menu, sending the current window to the back.
Tooltips are informative little labels that pop up on your screen when you point your mouse to...
If some of the tooltips don't appear, check the respective checkboxes.
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