Revit 2012 - Ribbon behavior due to .Net 4.5 installation

Hotfix - Autodesk Revit 2012 - Ribbon behavior due to .Net 4.5 installation

This hotfix corrects the behavior of the ribbon panels after .Net 4.5 is installed.

Make sure that Update Release 2 has been applied prior to adding the hotfix. Verify that the build number of Revit 2012 is 20110916_2132. If the build number is 20120126_0600, it indicates that Update Release 2 and the Memory Allocator Hotfix has been applied.

The Readme contains the latest information regarding the installation and use of this update. It is strongly recommended that you read the entire document before you apply the update to your product. For your reference, you should save the Readme to your hard drive or print a copy.

Link: 
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=21344242&linkID=9273944


Source: Autodesk site

Height/Depth of Walls

When you create a wall (an architectural wall or a structural wall), you can specify the following properties on the Options Bar:

- Level (for 3D views)
- Depth/Height
- Top Constraint
- Unconnected Height

Together with Base Constraint, these properties control whether the wall is drawn from a specified level upwards or downwards, the height of the wall, and whether its height will change when its base constraint or top constraint moves.

When you create a wall in a plan view, the Base Constraint is the level associated with the view. When you create a wall in a 3D view, use Level on the Options Bar to specify the level to use for the wall's Base Constraint value.

Note: When you use Depth on the Options Bar, use a structural plan to see the walls extending downward from the current level, or modify the view range of a floor plan to make them visible.


Source: Autodesk Site