Best way to "replace" an ongoing tournament?

Hi!, me annoying again… the Women Italian Serie A2 in Volleybox is literally a mess right now, the real world has 2 groups of 12 (A) and 11 (B) teams but here is apparently a big 23 one. So I'm “trying” (waiting for accept, maybe will get rejected, who knows) to create 2 separate ones, one for Group A and another one for the Group B. 

So If I get accepted, is there a good way to replace or even better get rid/eliminate the current big all in one group tournament we currently have here? =)

Thanks!