[Users] shrinking of computational domain at recovery

[Kentaro Takami]

Hi,

I want to shrink the computational domain at recovery from checkpoint.
For example, I want to change the domain from initial domain size:

coordbase::xmin   =  0.0
coordbase::xmax   = 50.00
coordbase::ymin   = 0.0
coordbase::ymax   = 50.0
coordbase::zmin   =   0.0
coordbase::zmax   = 50.00

to

coordbase::xmin   =  0.0
coordbase::xmax   = 30.00
coordbase::ymin   = 0.0
coordbase::ymax   = 30.0
coordbase::zmin   =   0.0
coordbase::zmax   = 30.00

Is it possible?
Is there already such a mechanism?

Thanks.

Kentaro TAKAMI