Phaser 3: Add extra Frame to Animation

Question

I have an animation for which I generate my frames with generateFrameNames. However as the last frame I need to add a frame with an entirely different Prefix. Is there any way I can generate my frames using this method, and then "add" the last frame extra? How would I do that?

Currently my code looks like this:

this.anims.create({
        key: "nom",
        frameRate: 12,
        frames: this.anims.generateFrameNames("chara", {
            prefix: "nom_000",
            start: 0,
            end: 5}),
        repeat: 2,
    });

The frame I need to add is in the same Spritesheet and is called idle_0000.