First, you get a sound, costume or backdrop named a number, Such as 1. Than, you delete the sound named the number, and in pure magic: instead of executing the usual nothing from the deleted sound, costume or backdrop, it will play the number listed sound, costume or backdrop in your sprite! Just like the rng does. [Explanation: switch costume to 1 and etc means it will switch to the first costume in the sprite.] This also works for costumes and backdrops!
