for(SelectorStep selectorStep : selectorSteps) {
indexEvaluators.clear();
selectorStep.getEvaluators(IndexEvaluator.class, indexEvaluators);
for(IndexEvaluator indexEvaluator : indexEvaluators) {
if(indexEvaluator.getCounter() == null) {
ElementIndexCounter indexCounter = new ElementIndexCounter(selectorStep);
indexEvaluator.setCounter(indexCounter);
addIndexCounter(indexCounter);
}
}