In this area you will define the basic context by specifyng a seat at the table, the stack, the #players at the start of the hand (not in the table structure) and the level stage of the game (for tourneys only).

These criteria will restrict the set of hands on which you want to focus.

It also contains a mini toolbar that gives access to the hands histories import, a range comparator and the online help.

There is a special case with the 4-max table configuration.

It often happens that, on some hands, there is no small blind (but there is always a big blind). In this case, the 4 players are not button, small blind, bing blind and cutoff but button, big blind, utg (or high jack) and cutoff. 

This is the reason why the 4-max table displays 5 seats and not 4.