Opening Instant Search
By default, Instant Search opens whenever you start the browser. You can disable Instant Search in Settings.
Search modes in Instant Search
Instant Search has three search modes: keyboard, the QR/barcode scanner, and voice search.
Keyboard search will prime the search box with the text cursor flashing and ready.
The QR/barcode scanner 
will use your device’s camera to scan for barcodes on products. Opera Touch will ask for your permission to use your device’s camera.
Voice search 
will use your device’s microphone. Opera Touch will ask for your permission to use your device’s microphone.
These search modes can be accessed in the FAB’s Home screen menu.
Closing Instant Search
To close Instant Search, tap anywhere in the darkened area of the browser interface.
Search suggestion shortcuts
Opera Touch offers shortcuts to search suggestions in the search bar. These search suggestions are indicated with a purple arrow. Tap the arrow to fill in the search bar with the suggestion. You can then continue typing if you have more keywords to add to the suggestion, or hit Enter to search.
If a suggested search query suits what you are looking for, tap the suggestion to start a search.
Quick access to home page in search mode
Your home page can be accessed when using search 
in FAB. Underneath the search box, you will see your top sites and starred pages.
If you have turned off top sites on your home page, you will not see them under the address and search bar.