Rolling and changing values of low rolls

One of the rogue advanced talents says "Treat all 1's and 2's on damage dice as 3's on sneak attack", and on a trickster path abliity it says "treat all 1's as the dice max value".  Is there a way to roll with these?  Like any die that's less than a certain value is set to X value?

I can't think of a way... but you can do the 1's and 2's as 3's with a weighted table or {[[1d6]], 3}kh for each die. So with two sneak attack dice you would have [[ {[[1d6]], 3}kh1 + {[[1d6]], 3}kh1 ]]. Now that I think about it... a rollable table named SneakAttack should work. Entry 1 = 6 Entry 2 = 3 Entry 3 = 3 Entry 4 = 4 Entry 5 = 5 Entry 6 = 6 Then you would just roll as [[2t[SneakAttack]]]

Thanks!