You can filter the stats shown to the current blind level on the HUD Options tab.
Beta 27 introduces positional stats for blinds, early, middle and late position. If you want to see stats for each specific individual position then you will need to build them as custom stats - there are a few positional stats already available in the
Repository but if you want to see any others as specific positions you can build them yourself. Have a look how the existing ones are done and see the
Custom Statistics and Reports FAQ.
To show stats by position in the Beta 27 HUD you add the stat as you normally would, then change the Properties tab "Position" entry.