I don't have the plus, but the reg chirp. Use the arrows to put the cursor where you want and hit SELECT. Lotta folks hit MARK but that denotes the boat position, not the cursor. Often, the most accurate way to determine the best location of the cover is to go back over the area and select it with dv and get rid of the earlier waypoint. I cannot comment about the touchscreen possibilities. I'm sure a step by step description is in the manual. I know it is in mine.