Hi
1. You should show us your code that is easier for us to help you.
2. Why you want to remove the keys? Add only keys that are used.
Example:
PHP Code:
new keys = (1<<9)
if (get_pcvar_num(he_on)) keys |= (1<<0)
if (get_pcvar_num(flash_on)) keys |= (1<<1)
if (get_pcvar_num(smoke_on)) keys |= (1<<2)
__________________