Is there a way to If/Then/Else ??

See, I want to put a condition in a roll.  Roll 3d10, if some dice result in 1, then the dice with maximum value will be discarded.  Example:      /roll 3d10  1, 3, 6  Thanks to this "1", I want to remove/discard/ignore "6" from the results. Keeping the "3".  Is there a way to do that? Some "if" command. Edit:  IF there's no "1" on rolls, then I keep with all dices. 

What happens if you don't roll a 1? Do you keep all three dice rolls, or just the highest? If you explain the full mechanic it might be possible, but I would guess that it's unlikely without a custom API script (Roll20 Pro subscription required).

Roll20 dice rolls don't support conditional statements like if/then/else. it's sometime spossible to come up with an expression to fake it, but I don't think there'll be anyway to do it for your mechanic. But as Jarren says, having the full mechanic described may give enough information to get one. I think you're best bet is a rollable table built from all the probabilities calculated out, though that will only work if the number of dice is always the same.

Jarren said: What happens if you don't roll a 1? Do you keep all three dice rolls, or just the highest? If you explain the full mechanic it might be possible, but I would guess that it's unlikely without a custom API script (Roll20 Pro subscription required). IF there's no "1" on rolls, then I keep with all dices. I'm sorry, just added to the post.

By checking how many 1's you roll in advance you can do it this way /r [[3-[[1d10<1]] ]]d10r1dh$[[0]] + $[[0]]d1 I've assumed that when you roll a 1 the 1 is still kept and only the high value is dropped