Sketchbox

Sketchbox is a VR prototyping tool. It lets you sketch user interface ideas quickly and interact with your drawings as though you're the user. Sketchbox is designed for fast, low-fidelity prototyping; it lets you figure out how things work and how they're arranged in space without worrying too much about appearance.

Sketchbox centers around a freehand drawing tool optimized for drawing UI components, for example closed shapes automatically form a surface. Shapes and lines can be grouped to form an object which can then be picked up and used as a prop in role-play mode.