Navmeshes

The navmesh represents the floor-space that Actors use to navigate cells. Navmeshes are comprised of triangles, the triangles can hold data like a preferred path, submerged areas or cover for combat. AI build better and more efficient paths based on data added to the Navmesh in the Editor or generated dynamically at runtime.

You can use the Navmesh Cheat Sheet for controls on the navmesh toolbar, to open the toolbar press CTRL+E