To filter dimensions based on complex calculations I use the following way:
Use the Pareto Select as an action in a button. The trick is the expression.
Put your condition in the form
If( condition = true, 1,0) and select the percentage as 50.
The condition can be really complex. Don't use "=" at the beginning of the expression in front of if (bug ?).
Together with a select excluded button, this is very powerful and user friendly.
I hope this is interesting for you.
Norbert
