I have a custom ViewController which allows selection of an image from a grid. The ViewController uses the AQGrid control and is really just a modified version of the samples shipped with AQGrid.
I’m trying to hook it up in InterfaceBuilder, but documentation on how to do this seems sparse. In standard Cocoa apparently I should create an IB plugin to use with IB, but I’m just looking for the quickest option really as there are a few of these custom ViewControllers which I need to hook up (including a rating control). I’ve also tried dragging the “Object” controller in IB to my tabpage, but it just gets added to the tree outside of the tabcontroller (see screenshot).

As far as I understand your question, you have to add a generic
UIViewControllerto your nib file and then change its class in the Identity inspector to whatever you need as long as it’s a subclass ofUIViewController.