Yes, Webix renders a normal HTML content, so you can use jQuery plugins on top of it.
There are few limitations though
you need to init the jQuery code only after the related Webix UI was created. If you want to apply jQuery content to the items in the list or other data component, you need to init jQuery plugin only after data loading.
it will not work for tabview and multiview content, as not visible tabs|views are detached from the dom and will not be affected by the jQuery plugins.