How to add new prefixes to autocomplete?

[givemetarte]

Hi, all.

Can I add new prefixes to autocomplete?
I want to add my new prefixes to autocomplete when querying via yasgui.
What can I do to add new prefixes?

const yasgui = new Yasgui(document.getElementById("yasgui"), {
            requestConfig: { endpoint: "......."},
            copyEndpointOnNewTab: true,
            persistencyExpire: 1,
            yasqe: {
                persistencyExpire: 1,
            },
        });