"Link to destination" is not displayed in the event handler in UI Builder

[Hirokazu Dekiok]

In Platform Analytics, I chose to create a dashboard with Technical editor and created a dashboard using UI Builder.
In the list component, set the "Reference link clicked" event and use the "Link to destination" event handler,
I wanted to write a script like the example below to implement a function that transitions to an external link.

/**
 * @Param {params} params
 * @Param {api} params.api
 * @Param {any} params.event
 */
function evaluateEvent({
    api,
    event
}) {

    const payload = event.payload;
    const sys_id = payload.row.sys_id.value;
    const table = payload.table;

    return {
        route: null,
        fields: null,
        params: null,
        redirect: null,
        passiveNavigation: null,
        title: null,
        multiInstField: null,
        targetRoute: null,
        external: {
            url: "/now/nav/ui/classic/params/target/" + table + ".do%3Fsys_id%3D" + sys_id
        }
    };
}

However, as shown in the image below, "Link to destination" was not displayed in the event handler options and could not be used.
Therefore, I would like to ask you the following two questions.

Q1:Please let me know if there is a way to enable the use of the "Link to destination" event handler.
Q2:Please let me know if there is any other way to transition to a similar external link instead of using "Link to destination".

I tried customizing only the external part of the script using the "Advanced dashboards - Redirect" event handler, but it did not work.

Everyone, we ask for your cooperation.

[Jared Kramer]

I was able to use the "Advanced dashboards - Redirect" to work with the following script:

function evaluateEvent({api, event}) {
	var table = event.payload.table;
	var sys_id = event.payload.sys_id;
	
	var url = table + '.do?sys_id=' + sys_id;

	return {
		context: null,
		route: null,
		fields: null,
		params: null,
		title: null,
		external: url
	};
}