To Upgrade a Dimension license (ie: stand alone to concurrent license), you will need to un-install the old license, then install the new license.

• Un-install the old license:
  • Open eTakeoff Dimension
  • Click on File/Administration/Install Software License 
  • Click on the “Un-Install” button. 

• Install the new license:  
  • Click on File/Administration/Install Software License 
  • Type in the new Installation password in the "Installation password" box
  • Click on the "Activate" button