I have Lightroom CC and Photoshop CC. When I edit a picture in Photoshop from Lightroom, it always opens up Photoshop 32 rather than the 64 version, This makes editing the new Lightroom Panoramas very slow and saving can be impossible. How do I change the default to Photoshop cc 64? My Windows 8.1 Default Programmes just shows Photoshop cc and does not allow the option of 32 or 64. Lightroom no longer allows the choice of external editors, so I cannot change it here.