There are no specific settings on any sonar unit to see the lure. It’s all dependent on your individual setup. How, where, the angle of which the transducer is mounted, the water temperature, cleanliness of the water, bottom content, depth, the lure size and density, etc. Everything will have an impact on how your unit reads your lure. Some spots you will be able to see it on default mode, the next may require you to bump up the sensitivity, adjust the ping speed, etc., to get a decent reading. This requires knowing and getting used to the settings on your particular unit