Cannot Modify Hardware Configuration when creating a VM Template

Whenever I try to create a VM Template I cannot modify any of the contents of the "Config Hardware" section of the VM Template creation wizard.  The entire section appears to be greyed out -- see screenshot below.  I am running VMM 2012 R2 and was able to do this when running VMM 2012 SP1.  Any ideas on what would be causing this would be greatly appreciated.