PokerTracker

It would be great if one could add "numbers of players" on the part of statistics for players SNG / MTT is very important.

And also, it is broken down by the hands of the selected group

example:

I want to review, in my case, hands played from bubbles (hypers 6 max) then created in "My reports" one from each group but does not allow me to review the hands of this group, which makes it very uncomfortable for the study.
ideally something similar to the filter "By position" where double clicking on a position, breaks down all hands
thank you very much

You can't double click on it to drill down but you could create a report in My Reports with the "Players Per Hand" stat displaying and that will group data based on the number of players per hand. You'd need to then use filters on other reports to look at specific 3 or 4 handed play - those filters are in More Filters -> Hand Details -> Number of Players.