How do you set a signature on a Samsung SGH-a177?

i dont have thins fone, but heres how i do it:

click message (it will then show the different message options: new message, inbox, drafts ect)

then click settings( for me its the left selection button)

scroll down to signature

click the "OK" button

scroll down to custom

enter what you want it to say and click save

hope this helped!