Small feedback on the document https://rocket.unrealengine.com/docs/ue4/INT/Gameplay/Introduction/ClassCreationBasics/BlueprintOnly/index.html
I just started with Rocket and decided to start with programming, so I followed that tutorial. I got stuck for a while on the last step (to set DesiredBrightness): that variable wouldn’t show up on the Defaults tab. Finally I realized I had to hit Compile for it to show. I suggest adding this information on that page.
Speaking of documentation, I also suggest a Send Feedback form on documentation pages, so we can easily send feedback, corrections, etc.