I am wondering if there is any functionality in PhotoLine similar to Photoshop's Photomerge capability?
The basic idea is - you have two or more photos of a landscape somewhere, taken by rotating your camera about on a tripod.

Then you use Photomerge to stitch them together into one long panoramic image:

I have done this by hand many times in Photoline - it is reasonably time consuming. The idea with "Photomerge" is that it matches the pixels on two (or more) images to join them together automatically. You could see how this would be a bit of an art - as an exact match would almost never happen. You would have to allow some fuzziness in terms of the match, and potentially correct for camera distortion, tilt, or color mismatch...