Generating Customised Intruder Attacks from an Extension

Hi, I'm trying to create a burp extension which generates customised intruder attacks. I'm aware that I can create attacks with some level of control (https://portswigger.net/burp/extender/api/burp/IBurpExtenderCallbacks.html#sendToIntruder(java.lang.String,%20int,%20boolean,%20byte[],%20java.util.List) ), however, is there any way to set options such as the attack type, number of threads, payloads, etc. ? Apologies if I've missed something obvious.