How do I use 2 key entrires ?

hi guys...is there the possibilty to define 2 dirent actions like that:

if press up + down do THIS action

if press only up do another action

is that possible ? how can I manage that with 2 keys in the same moment ???

thanks

Something like this:

[attachment=0:1ss92xig][/attachment:1ss92xig]

Thanks ...I will try that