Blink tracking has been added to the latest release of the Gazepoint software (V3.0.0), both to Control via the Open Gaze API (all versions) and to Analysis visualizations (UX). In Control you can access the blink tracking metrics by enabling the ENABLE_SEND_BLINK setting which adds a blink counter BKID, blink duration for the last blink BKDUR and the average blink rate over the last minute BKPMIN. In Analysis simply click the Enable display button for the Blink Rate to turn on the overlay.