Block & Attributes:

Insert Block, Create block, Write block, Block editor, Define attributes, Manage attributes, Edit attributes
(single, multiple).

View:

UCS, View Control, View Cube, Visual Styles, Navigation Bar, Switch Windows, File Tabs, Layout Tabs,
Viewports, Multiple Viewports (horizontal, vertical, cascade), Viewport Configuration.

Advance Tools:

Properties, Design Center, Plot, Sheet Set Manager, Parametric.

Level III
Advance
(3D Basics)

3D Basics:

Converting 2D objects to 3D, Extrude (direction, path, taper, expression), Bolean(Union, Intersection,
Subtraction), Using 3D objects, Revolve, Loft, Sweep, 3D Modification, Slice, Helix