2021e executor writing

Hi, i want to write my first executor for 2021e (Pre-Byfron Era), i have done this guide https://wearedevs.net/forum/t/13738, Dll injected with proccess hacker and works but how to add more functions? (by the way my print adress is 0x657AE0 - 0x400000)

https://cdn.discordapp.com/attachments/983976496609755176/1425724384206655500/image.png?ex=68e8a0cd&is=68e74f4d&hm=2cc8266fb996d05bec8fea9e6dc95f02f21ff7e94ed35a0f737740a4eacff197&