OoConfig is a Python extension that seeks to provide configuration editing capabilities similar in spirit to Mozilla's about:config facility.
You can checkout a work-in-progress version here: ooconfig.oxt
The extension parses the configuration schema files, dynamically extracting all toplevel configuration nodes:
Clicking on one of these opens a new Calc sheet, listing the subnodes plus extracted help texts from the schema files. Editing the value column actually changes the configuration item for the running office instance:
Items changed from the default item value are printed in bold text.