@unknownuser said:

Hello there,

Welcome to this little SketchUp Community we have set up here!

Welcome to this forum for all your beginners questions. You may also have more advanced questions and may post them in the appropriate forum.
If you're not sure if your question is beginner or advanced, then don't worry too much. The world is full of worrisome people already and we want you to get that cozy - de-worried feeling here. So in that case just post it here anyway.

Hi there!
Could you tell me what I am supposed to do for downloading ROUND CORNERS plug-in?