How to work with a draft view or sketch associated with a drawing or model.
A draft view can be "empty" because it does not require a model representation and can contain multiple sketches. You can add a draft view to an existing drawing or create a drawing with a draft view containing AutoCAD data.
An empty view is placed and the associated sketch is activated so you can begin sketching.
You can scale a draft view or sketch, unlike a regular 2D sketch. If you copy geometry from a draft sketch to a regular sketch, the copied geometry appear with the scale as 1:1 in the regular sketch.
When you open an AutoCAD file as an Autodesk Inventor drawing, a new file is created with a sheet that contains a draft sketch. Geometry from the AutoCAD file is placed in the draft sketch. (You can add a draft sketch even if you do not have AutoCAD data.)