[Chimera-users] display of single letter AA code?

Hello Chimera administrator(s)- I was wondering if there is any way fior Chimera to display amino acid residue names in single-letter format, rather than the three-letter format one gets when selecting Actions-->Label-->residue-->name ? I have looked over all the documentation I can but have not found anything to answer this question. Thanks in advance- Mark Mark J Daniels Department of Cell Biology The Scripps Research Institute La Jolla, CA 92037