I am using Magento2.3.1. I need to discount a product by a customer custom attribute. I've added "DynamoCustomerType" to customer attribute. I used this first order discount tutorial to add customer attribute to cart price rule condition. It works perfectly for cart price rule.Here's a screenshot. I need this work the same for catalog price rule. Please let me know how to add a custom option to catalog price rule conditions and connect an event to it. Thanks.