Deploying VM from template - Adding extra disk doesn't allow to choose location

Hi, 

I am using SCVMM 2012 SP1 and deploying a VM from a template.

The template contains 1 VHD and while deploying I am adding an additional disk.
Where for the first disk, I may select where to store the VHD, 
adding an additional disk using the wizard does not allow me to select where to store the VHD files
but stores it in the folder where the config files are.

Am I missing something?