Basic transposition - HELP

Hi,
I am losing my mind. All I want to do is transpose a current score down a 1/2 step and for the life of me I can't figure out how to do it. I went into the "gear" interface and opened the instrument but it doesn't look like you can just knock the entire score down 1/2 step.
I know I must be missing something. Is there another way to do this?
Thanks in advance for any help.
Mark
I am losing my mind. All I want to do is transpose a current score down a 1/2 step and for the life of me I can't figure out how to do it. I went into the "gear" interface and opened the instrument but it doesn't look like you can just knock the entire score down 1/2 step.
I know I must be missing something. Is there another way to do this?
Thanks in advance for any help.
Mark