Create in Erdas Imagine Photogrammetry file (.blk) with some documented process description

I'd like you quickly (if it possible - today) create Erdas .blk file (Imagine Photogrammetry) from GeoTIFF Drone Images with CAM file . I'd like the .blk file to be ready to use in Erdas Stereo Analyst Project. Once blk file created, I'd like to understand the creation process via Skype Session (in English or Russian) or some document describes process (simple one in English or Russian)