This article will show you how to use Bulk Actions to apply a template.

Instructions  

1. Navigate to Modules > Site Tools > Template Manager
   
   
2. Select the desired module
   
   
3. Check the box of the categories that you would like to apply the template to
   
4. From the top Bulk Actions drop-down, select the Template that you would like to apply 
   
5. Select Assign 
   
   
6. Select Save Changes