Is there any easy way to select a range of chains in complex models like the ribosome in Chimera at the command line?  I haven't been able to work out the syntax for this type of complex selection at the command line.  For example, what is the syntax of the command to select chains 1G through 1Z and chains 10 through 19 in PDB file 5DOY [without explicitly listing them one by one]?  I may be missing something simple, and I have not been able to get it to work or find an example in documentation.