PokerTracker

I play 6-handed

and I want to ad the statistics so I can se the numbers of when OPP RFI UTG, UTG+1, MP, HJ, CO and DB. What is each of those called? I feel stupied to not find them

They are not listed as separate statistics but if you want that information in a HUD you can specify the position via the 'Item Properties' tab at the top right of the HUD Profile Editor window. Select the stat you want to configure and scroll down to where it says 'Position'. RFI by position is also available in the default 'Tools' popup or you can create your own positional popup.