Generalising on an idea I've had for a while, I offer this program to  allow you to import (humourously: 'steal') items from another drawing  into the current drawing. 
  
Steal 
  
Upon running the program the user is  prompted for a selection of a drawing to steal from, and, upon  selection, a dialog appears detailing items available for import. The  user may choose multiple items from a list of... 
  
 
Blocks 
Layers 
Linetypes 
Dimension Styles 
Text Styles 
Table Styles 
MLeader Styles 
MLine Styles 
Layouts 
Page Setups 
User Coordinate Systems 
Views 
Groups 
Layer States 
Scales 
Materials 
Viewports 
Drawing Properties 
Custom Properties 
 
...should these collections contain any items which aren't already present in the current drawing. 
  
 
Dialog Preview 
  
 
 
 
  
A full description of the program and the latest version can be found here. 
  
Enjoy! 
  
Lee 
StealV1-8.lsp