To extend HmiGuide's answer slightly: user-defined widgets for WebIQ are created offline (i.e. independent of WebIQ Designer), typically using tools like NodeJS and Grunt. You can create such widgets (or, more precisely, the packages that contain them) without any WebIQ license. WebIQ licensing comes into play only when trying to integrate your widget into a WebIQ project - installing the associated package, testing your widget, etc. The short answer is that the designer license bundled with the WebIQ server app (for ctrlX CORE) is sufficient for this. You do not need an additional designer license for your PC.
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