disabled of ui.iframe, Properties Webix Docs

indicates whether an item is enabled

boolean disabled;

webix.ui({
    view:"button",
    disabled:true
});

Details

By default, all views are enabled, i.e. the value is false.

A disabled view loses focus and will not react on mouse events.

The same state can be forced through Webix API:

$$("button1").disable();
$$("button1").enable();