Specifying nonuniform initial condition

msyaml

Hi,
I have a 2D domain consisting of four blocks. I want to specify the initial condition for a field variable as T=1 in block 0 and as T=0 in the other three blocks. Is there a way to specify the initial condition block-by-block? i.e., in file T in folder 0 use the keyword non-uniform and specify a list of blocks and the corresponding T values. I am a novice user and was not able find an example for this in the user's or programmer's guide or in tutorial cases (e.g., damBreak example is similar but seems to use an initialization program). Thanks.
Syam