You cannot change prefix of XEpert %help Is only way to run XEpert commands.

Simply visit https://xepert.ml/invite in your browser, then authorize the application.

First, simply fill out the embed that you want, then press on the send button which is located at the bottom right of the page. Once clicked, you will have the option of sending it to a channel of your choice, to save it as a custom command, or send it as a webhook.