The Instructor row

Instructor is the tray row that tells you how to drive Linea: how to move around, which tool does what, and how to type exact values.

It opens with a line about Linea drawing in plan and in three dimensions at once, then a Shortcut style control. The list underneath follows the style you pick.

Four tabs sort the reference. Moving covers navigation and the camera. Drawing covers the drawing tools, item placement and massing. Editing covers selection, direct manipulation and modes. Typing covers typed values and the command line.

Moving begins with a short "Moving around" section: Orbit, Pan, Zoom, Frame all and Menu, each with the mouse action that does it. The full list of shortcuts is on the keyboard shortcuts page.