Suggestion request: each step creates a mailing, so we have dozens of mailing that confuse us

Each Chassé step creates a mailing: now when we visit "Sent Mailings" we have dozens of mailing that confuse us because the ones from Chassé are together with the bulk mailings.
I could put the campaign in the journey, but I'd like that Chassé mailing where excluded from "Sent Malings" and not to apply a filter each time (a filter to exclude campaign now it does not exist in standard scheduling view).
Perhaps an option could be put in place to archive them directly?

What do you suggest? Thanks.