NEW Environmental variable that didn't make it to the docs.
PFIXGT=ON
This will allow *clerk to do a next-greater-than if no
exact match is found when selecting through Index Selection.
PFSCC=ON
This will enable the "!scc" shell-escape within dclerk
and rclerk, which has been disabled by default.
-ro and PFREADONLY=ON
These features have not been fully tested and may not
work for your specific application.