Apexis Relics (as well as Apexis Monuments) around Ogri'la plateaus have you replay a sequence of up to 10 notes - but the sequence is easily forgotten, and writing it down is cumbersome (besides, it takes effort!).
Ogri'Lazy is aimed to simplify the process. When you interact with an Apexis Relic/Monument, the Ogri'Lazy window appears with four buttons, each representing a color of the sub pylon. Add the sequence the Relic is playing by pressing the buttons (or the hotkeys), and Ogri'Lazy will automatically keep track of the sequence for you. Once you start replaying the sequence, Ogri'Lazy will also keep track of your progress, saving you from forgetting which note you were up to.