An action "where" that filters on the currently selected concepts
If the option "stopIfEmpty" is set to true, the action chain will terminate after the where action, if no concepts
survived the filtering.
Available operators for property/variable/value filter:
- "equals" - "number", "boolean", "string", "concept", "array"
- "unequals" - "number", "boolean", "string", "concept", "array"
- "greaterThan" - "number", "string"
- "lessThan" - "number", "string"
- "greaterOrEquals" - "number", "string"
- "lessOrEquals" - "number", "string"
- "startsWith" - "string"
- "endsWith" - "string"
- "includes" - "string", "array"
- "includesAny" - "array"
- "includesAll" - "array"
- "matches" - "string"