"SELECT" should only be used with AUDIO. If you want a button/command from girder to "act" differently on different modes (i.e. a button act as "SELECT" when using audio, and as "PLAY" when in Sirius) you need to use exectbl to define a new command:
1-Make girder execute a new/undefined command (that you're creating), for instanse "BUTTON1"
2-Add the function "BUTTON1" to exectbl, for instance:
The above will make the command "BUTTON1" execute "PLAY" when in Sirius mode and execute "SELECT" on any other mode... you can also specify the .skin file name instead of SR to specify what command it should execute when "BUTTON1" is called from that specific screen... the last command without the 2nd comma is always the default for whatever is not specified above it...