7.6.2.5.1.  Extrude...

Call: Base -> Extrude...

-> The sketch is opened in the 3D view.

-> The command Extrude... opens the dialog box Extrusion solid.

Once all entries are made a preview is displayed in the 3D view. Changes are immediately displayed.

After you have left the context menu Extrusion solid via OK , you will see a new feature in the 3D History called Base extrude 1.

In the 3D view the sketch shows up as a solid body.