[Help needed] Where are the Regular size class bar buttons defined in .xib?

[liuzhen2008]

I see that for each editor button, we have a regular editor button.

However in the xcode editor for the .xib file, can only see a "Left Toolbar" that contains the editor buttons.

I am not able to see the "Regular Toolbar" defined in the WPEditorFormatBarView.xib.

How do I see these buttons so i can link them to the .m files?

Thanks a lot