Unfortunately, It is not possible to change the map location of the Excel Add-in.
You are prompted during installation for the Excel Add-in as to if you are installing for current user only or for all users (admin rights required). This indicates which of the below paths the add-in will be installed in. However, the maps are always stored in the local user profile.
Path for Current User Installation (Non-Admin):
Path for All Users Installation (Admin Rights Required):
C:Program Files (x86)Microsoft Office\XLSTART
HP has an enhancement request to a selection in the future.