HDR image can be assembled from multiple images or from a single image. We can process multiple images with the same presets (Batch processing). A very useful function is Open final image in external program (Photoshop; Lightroom; Photoshop Elements or another program). They are Information windows that can be activated for guidance and accommodation with the program. The program also has a Benchmark that shows how our PC is requested. In the end we have to note that the program has 7 Interface styles and one individual styles that can be customized. Complex, intuitive and stable photo-editing software!
We strongly recommend the HDR Projects 4! Recently appeared version 5 of HDR Projects from Franzis (https://www.projects-software.com/HDR).
Currently (2020) already exists the 8th version of this software (HDR Projects 8 Professional)!