This video will demonstrate about creating sloped beam in Revit LT product. And this one is created as per the request from customer. If you have queries in Revit you can post in Forum page of this blog.! I'm Very much happy to Help.

Automatic! Divide the Calculated supply airflow from space and apply to Diffuser which inside the Space

Check the Height of the ceiling Graphically by overriding the ceiling color in view.

Change glass panel to Wood panel

To check the offset value of ceiling you can use schedule conditional formatting,