How to Change UIView Size in Interface Builder

When you create a new UIView XIB in Interface Builder, it is by default full-screen. Width and height cannot be changed, they are dimmed out. What to do?

Switch to Simulated Metrics and change "Status Bar" from default (gray) to None. Now you can edit the size!

First time this was difficult to discover, second time I kind of recalled what to do and now it's all so plain obvious :)