setting initial time signature

[Gordon Kent]

Hi:
I’m trying to set a time signature of 12/8.  In the transport view  in the midi 
control cluster, where it says meter value I can’t get it to read anything and 
I don’t know how to set a value there.  If I try mouse clicking on it and 
entering a value with the numeric keypad and then pressing enter I get the 
locate dialog up.  How would I do this?
Gord