Sheila, Dave:
I have created a new system directory in the SVN cds_user_apps repository called trunk/sqz.
I have checked this out as a working directory on the CDS file system under the path /opt/rtcds/userapps/release/sqz. Like all systems under the release path, each are individual working directories so there is no possibility of someone at the highest level accidentally updating every system.
I am in the process of adding SQZ to all the search paths for matlab and RCG.