Editing Tournaments

Hi guys;

First of all I want to congratulate the whole team because the new SWOS 2020 is the best thing that I see in a long long time. Now, my question is about editing a tournament. There is any way to create a DIY comnpetition but edit the teams that goes to one group or another. I don´t know if it is possoible but I saw different groups such as the 2018 world cup.

thanks in advice!!