Plugin doesn’t work with advanced shipping plugin

Hi,
THe plugin is great but it works only with the standard free shipping zone of woocommerce. For us that use and advanced shipping plugin which handles the shipping zones on its own the bar doesn’t work. Is it possible the plugin to read the shipping methods created with another plugin so that it can work with it? For example, is it possible to have a field where we can add the value of the free shipping method and so it can calculate it?