Auto resize is not there


I can’t find auto resize when i click on another thing i can see it but i can use it if you understand its upsetting how do i get it to work??


well i skipped that mabey it will do that its self but now the next part i have to type and its coming up with an error and it says there is something wrong with the programming and what i typed is excatly what is in the book what did i do wrong??