My Xcode is acting really weird, the normal side view of the editor looks upright, instead of the usual behavior in which it becomes like tabs.
I understood why the assistant did not behave as before. It seems the settings were mixed up after upgrading to Xcode 6.
For those using Xcode 8+
Try Cmd + Alt + Shift + Click in the file to unlock window magic ...
Cmd + Alt + Shift + Click
In xcode 9, you can press ALT + CMD + ENTER to show documents side by side
Source: https://habr.com/ru/post/1210433/More articles:Asset management - maintaining a reference to relative assets after concatenation and version control - cssDoes ProtectedData Protect Multiple Computers? - c #Deferred tasks create new instances that cannot access some python modules - pythonIOS Swift Time From Date - iosRemove last word of line in shell - linuxCan property memory management be changed if it is overridden in a class extension? - memory-managementCSS gradient across multiple elements - htmlActive recording includes STIs - ruby-on-railsGradient over multiple views - androidHow to get body from imap server in Go - goAll Articles