Keep only rolls above a certain value

Hello, it's me again. i want to roll a dice and see if it's below a certain value. If it IS, than everything is fine. If it is not, I need to know how large the difference is - something that seems to be not possible for roll20. If I overlook something and there is a way to achieve it, please help me out. ^^° P.S.: If the aformentioned roll is not doable, is it possible to get absolute values?

[[1d6r2]] will re-roll all 1's and 2's.

If I 1dx-n where x is the die size, and n is the value you wish to roll under. The result should be the difference, if its negative you rolled under the value.

Doh, I didn't fully read what was wanted, lol.

Yeah, but I want to drop the negative ones - I only need those above the value (the postive ones).

To expand on Palm's idea: {1dx-n, 0}kh1 will drop any that are below 0.