For anyone that is interested, here is a link for the key tool:
http://www.homedepot.com/p/Voyager-II-Adjustment-Key-55070/100188976?cm_mmc=Shopping%7CTHD%7CG%7C0%7CG-BASE-PLA-D26P-Plumbing%7C&gclid=CMfgma30kMwCFQZkhgodYN8LNA&gclsrc=aw.ds
Here is one of several Youtube links discussing the operation of the key tool:
Hope this helps.
Paul Fisher