Popup button with multisuggest

Good day!

I need implement popup for the button which contains ability to select multiple options.

I have tried multisuggest, but it does not work.
https://snippet.webix.com/jmg2zsxt

How to implement it?

multisuggest itself is a popup view.
check this
https://snippet.webix.com/r7k63h4w

Thank you! Genius.