CEC Adapter settings have been broken since #0609, specifically because of PR12276 - revert this PR and the settings are visible again. I guess this is one for @Montellese, or maybe @opdenkamp.
Texture Cache Maintenance Utility: Preload your texture cache for optimal UI performance. Remotely manage media libraries. Purge unused artwork to free up space. Find missing media. Configurable QA check to highlight metadata issues. Aid in diagnosis of library and cache related problems.