Wolsung roll macros

Hi, I recently wrote a macro for rolls in the Wolsung system. Works amazingly well with my players. The only thing I can't add is rounding the exploding dice to make them count as 10 (system principle). In Wolsung dice can explode as 8, 9, or 10, depending on players atributes. You roll 2d10 and sum it up separately, choosing highest roll. I leave it here, maybe someone will add some upgrade.  Any thouhgts? /em ?{Name your roll} /roll [[{1d10!>?{explode|10|9|8}, 1d10!>?{explode|10|9|8}}kh1 + ?{skill|3|6|9}+?{Additional bonuses|0]]

Are you saying that any die roll that is an 8, 9, or 10 explodes, but if it is above 10, it is set to 10?

For example, if dice explodes when rolled 9 it should count as 10 to the final sum on the dice. (English is not my native language, so sorry for any mistakes.) 

Unfortunately you cant do that in roll20 at the free level. You cant have effects that apply only under specific conditions. The condition in this case is : if dice explode, modify this die to a 10 . That's not possible.