Xcode Xib Add Editor On Right button cannot be clicked

The "Add Editor On Right" button in the xib is grayed out and cannot be clicked (as shown below)

 

Solution:

Enter the Xib page, the button keyboard shortcut:  Control + Shift + Command + Enter   , then the button will become bright! At the same time, this shortcut key is also the shortcut key to open the right page. If it is convenient, you can use the shortcut key directly without clicking the mouse in the future.

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Origin blog.csdn.net/wyz670083956/article/details/127559805