One final question I think :)

I am trying to inject a validation into the field for the check, what is the best way to do that?

I can see that my js checkValidyCommon function is called when the form gets submitted, is there a way to inject a validation item into the validationResults array at this point?

This was the code I copied for the check validity common

validationResults = [];
for (i = 0; i < validators.length; i++) {
    validator = validators[i];
    validationResults.push(checkValidity(validator, value, validityFnName));
}
validationResults.push(response);


// Add inline validation messages.
aggregateValidations(validationResults)
    .then(function (result) {

        // Add inline validation messages.
        fieldRenderer.validationListElement = addValidationMessages(
            containerElement, result.messages, fieldRenderer.validationListElement);

        // Add or remove validation error CSS class.
        if (result.success) {
            containerElement.classList.remove("formulate__field--validation-error");
        } else {
            containerElement.classList.add("formulate__field--validation-error");
        }

    });

// Return the validation results.
return validationResults;

I have a javascript function the returns a success/fail object with a message, is there anyway to get it into the pipeline