Macro for sorting out fails in a mass-roll

Hey guys I hope, this question isn't already discussed and solved in this forum. Following problem: In the system I play, it's "Dungeonslayer", I have the possibility to summon several undeads, to be more specific: up to 50. Every undead is a NPC by itself, so when they attack, I have to roll for every single one. I know, how to implement a macro to roll for all simultaniously and to Show me how much of them are successes, but the outcome of every roll is also important for damage.  For example: my Skeleton has an attack of 14. I have to roll a d20 for 14 or less, the result is the damage at the same time.  So, my question now is: Is there a way to sort all of the failed rolls out and to display only the successes? Maybe even with a variable amount of attacks, for various quantity of undeads plus potential modifications ? I hope this is possible, it would save a huge amount of time for us. Thanks in advance 

I really can't come up with a good way of doing that without the API.  If you only care about the damage, you could create a rollable table with the values 1-14 and a 0 weight 6, then roll on that [[ 50t[14AndBelow] ]] to get a sum total of damage for all the hits, but you'd have to count the number of hits by looking at the rolls for 0s.  You could change them to __ or something and it's easier to spot the misses:

Looks pretty good, I'm definitely going to try it out. Thanks a lot.