Add walls to the grids (to close off areas/paths).
Have your character navigate through the grid.
There are 4 pathfinding types included (how/when it calculates the path):
On_Hover (when you hover over each tile it recalculates).
On_Click (when you right click to go it calculates).
Once_Per_Turn (When char arrives at a new tile it calculates all paths).
Max_Tiles (Similar to Once_Per_Turn except you choose how many tiles your char can go).
There is also the option for a 'Big' character that requires 4 tiles to move on, this is meant for bosses and other large characters that cannot navigate skinny corridors.