There is a separate gizmos for each operation. It also gives you an intuitive idea of the extension a terrain has. The first method is to drag-and-drop a text file into a Unity project that imports the text asset.
With this tool, it’s easy to check the boundaries and overall height of your terrains. They can be useful as setup aids (to help us know what we are doing) or for debugging (understanding why objects aren't behaving as expected). Gizmos provide interactive, online simulations that engage students in the classroom. Copy the whole code into your required script and call drawString () in OnDrawGizmos ().