We are using Wordpress to create a commerce website. We have installed the Woocommerce plugin as well as the Dokan plugin to aid in commerce. The problem that we are having is that there is a form in the Dokan plugin that we would like to change and add a few new fields to. In the picture provided it was very easy to add a new field in the front-end using html (labeled expiration date). The problem that we are consistently running into is linking this field to the backend plugin code. It involves knowing how to use Wordpress hooks and the inner workings of Wordpress. We cannot figure out how to effectively call the corresponding hooks in order for the new field to be saved into the corresponding model object.