Like how do I use the disemember setting and what does it do?

nick - self explanatory
match frames - length of the match
turn frames - length of each turn
engage distance - starting distance between players. higher number for further apart
dismemberment - turns dismemberment on and off
disqualifications - turns disqualifications on ground impact on and off
self damage - turns self damage on and off

i've added you question to the faq

ok but I enter on and stuff but nothig happings when I press Enter all it does is just reset.

and oh yeah 1 is on and 0 is off

sorry blue, i forgot the last line:

you have to start a new game for the changes to take effect