Setup title block attributes. 
Access Methods
 Ribbon: Project Setup

Isometric DWG Settings

Title Block Setup 

 Title Block Attributes
 
 Command entry: 
plantisotbattributesetup
 
 
Summary
- Displays the Insert Title Block Attributes dialog box. 
 
- Select block or [Insert default title block]
 
- Selects a title block in the drawing, or i to insert the default Title Block. You can erase the default title block to display this option.