[Chimera-users] how to select atom within a rectangular region

Hi Chimera Developers, This is Dengpan, one of chimera users. I have a question about how to select atoms within a region? For example, I I want to select atoms within a rectangular region x0 to x1, y0 to y1, z0 to z1. Could you please give me a hint how to do it? Thanks. Dengpan Dong -- Department of Materials Science and Engineering, University of Utah