In my original post I messed up my description. I should have said a box plus one. For example when looking at a typical keypad you could make a fish with gh and vb directly underneath. My thought was to create a target fish by adding either an f, or a j, or a c, or an n to the example I used.
I’m not a programmer at all but I thought maybe it would be possible. Currently when you create a fish it turns the colour of the blocks used to make it, you then deploy it by breaking the fish block or joining it to a special candy, and it randomly swims away to hit another spot. Perhaps when you make a fish with a 5…