Advanced Random Trigger
Spawns one group ID at random from several group IDs.
The probability a group is chosen is proportional to its random weight, divided by the sum of all random weights. This probability is displayed next to each group as a percentage.
Menu
Groups can be added by using Add. Chance sets the random weight of the group. If the group already exists then Chance will increase the existing weight.
Clicking on a group removes it from the trigger.