Can 2 custom leagues run at the same time?

Hi guys, I upgraded all the scottish tiers to mirror how the english leagues run. 20,24,24,24. Works great but I'm wondering if I create another league system from another country (argentina as I hate it's set up) would they be able to run at the same time? Just curious to know before I jump into the editor and waste my time in case it wont work. Obviously it would be two different database files.

The only issue you would have is if you tried to run two separate files for the same nation. Otherwise, you can have as many separate country files as you want to