Pokopia tip for builders

A quick pokopia tip for you all: If you have loads of pokemetal but are missing stuff like rocks just take a picture of a boulder and with 99 pokemetal u can get 4 stacks of rocks. Just go onto magnemite and spam a+y. Idk if anyone else has seen this but it can also be done with the log piles, metal piles and the small rock clumps but slower.