How do I execute prefs? never done it
step 1: open up the console
if you are hosting on the same client you are playing on press the grave accent/tilde key (`/~) which on a standard US keyboard is to the left of the 1
step 2: copy and paste one of the prefs into the console entry, then add an equals sign after it followed by true/false and then a semi colon, this is shown below, you can also substitute 1 or 0 for true and false respectively
step 3: slam that enter key
once you set a variable like this it will immediately take effect, and as long as you close blockland by pressing the quit button they should persist for next time