No prob and thanks for the welcome! The grid is for bettering your chances of keeping a chain for the shiny pokemon your trying to get. In a grassy area, You use the grid. If you already found the pokemon you want to chain, and you memorized the way that patch of grass shaked, take another 50 steps and activate the pokeradar. If you follow the grid and a patch of grass that you need shaked in a number four on the grid, supposedly that's where the pokemon is supposed to be lol