We have been enjoying with custom actions in our actually games. It just saves us a ton of time in GUI design and setup NGUI. We decided to distribute these actions to community with a hope to help "Developer life easier".
These included actions in this package are very handy PlayMaker Actions for NGUI and its components.
Simply, you can unlock powerful NGUI features without a single line of code.
Every action has it own ToolTip to explaine what it does.
You also can have a quick look in sampleScene that is already setup with these actions
https://www.assetstore.unity3d.com/en/#!/content/17920