Sketcher NewSketch

Description
This will create a new sketch.

Note that the PartDesign workbench has its own new sketch command, when using PartDesign it is preferable to use its own dedicated tool.

How to use
Clicking on the icon without a face (pre-)selected will pop up a dialog asking if the sketch should be drawn on the You can change an offset to any of the three planes and the side of the offset.
 * XY-Plane
 * XZ-Plane
 * YZ-Plane

Clicking on the icon with a (pre-selected) face will cause the sketch to be mapped to the selected face.

Note
The sketch can be re-mapped to another already existing face using the Map Sketch - Command

The sketch can be moved in the 3D-Space using Placement.