Hi,
The EyeX for Windows software is designed for multi-modal use as a complement to keyboard, mouse, touchpad or other hand-based input. We have no intent of adapting it for mono-modal use at the moment, but a third-party developer could potentially build a separate software to accomplish this, for example by using eye-based input to generate activation events for EyeX for Windows. The precision should be enough, especially since EyeX for Windows is context-aware and can snap to clickable objects etc.