| Font | 
Selects the font (from those available on your computer) that is used to display the code in Source view. | 
| Size | 
Selects the font size that is used to display the code in Source view. | 
| Apply automatic formatting when switching to Source view | 
Each time you switch to Source view when working on an asset, the code is automatically formatted according to the following choices. | 
| Indent block level tags | 
Successive block-level tags are indented to make the text easier to read. | 
| Indent Size | 
Sets the indent size by number of characters. | 
| Place each tag attribute on a new line | 
Each attribute of a tag appears on a new line. The attributes are indented to the same degree as the tag itself. | 
| Tab size | 
Identifies the number of characters per tab. | 
| Enable Line Wrapping | 
Enables line wrapping. | 
| Line Length | 
Specifies the maximum number of characters per line when you enable line wrapping. | 
| Treat unknown tags as inline elements | 
Ensures that any unknown tags that Designer encounters are treated as generic inline elements (for example, SPAN) during HTML Tidy actions. | 
| Generate XHTML-compliant markup | 
Turns existing HTML into XHTML-compliant markup. Consequently, elements in HTML are combined with XML to create a more standards-aware language (for example, closing all HTML tags). | 
| doctype | 
Adds the specified doctype to the header of the HTML for the web page. | 
| Help | 
Opens the online help for this specific dialog. | 
| Close | 
Closes the Customize dialog. |