Use the same video with different cropping parameters

Hi!
I’m using DLC 2.2 , using the GUI with windows 10 and RTX 2080 Ti for single animals (fish).
Working on big 12 h movies with 2 arenas in each, so I need to use the cropping parameters and analyze twice each movie.
My problem is that after the first analyzation when I’m trying to change the cropping parameter and analyze the video again (for a different arena), it returns that the movie was already analyzed. The only solution I found was to save the video again in a different folder and analyze it as a different movie.
I also tried to add the movie to the config file with the second cropping parameters but it didn’t let me load the project as there are duplicates in the video files.

Any help will be appreciated!
Many thanks in advance,
Shachaf.