PokerTracker

Can someone please tell me how you access the combinators to quickly calculate the combinations of an opponenets expect hands ranges on PT4?Thank you

There is no way to turn a specific percentage to an exact range -- even if two players play exactly 10% of hands they can choose a different 10%. If you want to see what percentages certain ranges make up though you can see that in the equity calculator's hand range selector. Click Tools -> Equity Calculator and one of the Sel buttons on the left to see it.