Probability for table triggers?

[josker]

Hi! 

I'm trying to create a table filled with triggers and a probability for those to trigger. The FX column is:

PRTR 0001
TRIG 0010
TRIG 0010
TRIG 0010
TRIG 0010
TRIG 0010
PRTR 0064

^All of those triggers are played each time. Tried with the TRG1 effect, as well, same effect. Could someone point me to the right direction? 

Thanks!