After Cortana/Search’s redesign, Windows 10 Redstone 4 (Version 1805) may bring one more interesting UI feature with itself. Apps may soon support tabbed UI navigation in Redstone 4, reveal new leak.

The leaked screenshots show that this feature known as “Sets” or “Windows Sets” will enable adding two kinds of tabs once you launch an app. You will be able to add Web tabs and also Apps tabs. Web tabs are a browser or Microsoft Edge tabs related to the app’s tasks, while Apps tabs are more windows of the app that you are using.

So, what do you think about this new and upcoming feature? Would you prefer tabbed UI navigation in Windows apps and would like Microsoft to bring tabbed UI navigation to OS too??