• given:
  • I am in the report builder
  • I choose a variable filter
  • I select a variable from the input
• when:
  • I toggle to show only instances/evaluations where a variable
• then:
  • was null/ has not been set
• such that:
  • I can filter my process instances for undefined/null variables

Context:
This frontend task depends on the backend OPT-2503 task