I\'m making a Cocoa application, and I would like a panel like the \'Attributes Inspector\' in Interface Builder. So with big tabs on the top and collapsable/expandable grou
There's no built-in Cocoa controls to do this. You're going to have to write some custom views which replicate the functionality.
There some good advice for creating custom controls in the answers to this question: Looking for info on custom drawing of interface components (Cocoa)
If you need additional help, I recommend you ask smaller, more specific questions explaining what you've tried and what hasn't worked.