Try the next version of opera Next 18.0.1284.7 without affecting your stable installation.
Whats new in this version
.Installable themes
.Moving tabs between windows
.Enhancements for Search Engines Manager
.Media Capture Support
.Update Chromium to 1650.16
Download Opera Next 18.0.1284.7 for Mac
Download Opera Next 18.0.1284.7 for Windows