Random in calculated property

Hi all,

I can’t have this wor k : how to add a random number in a calculated property.
I know how to use the dice result, like this : {GetProperty(“1d20_result”)}.
But this result won’t change until i roll the dice again !

How to make the random number generated in the value definition ?

I don’t want to add a sequence of operations like : click the button → rolls the dice → calculated the property depending on the dice.

There must be a specific syntax to call for the dice to be rolled. Please ?

thx for your help