We could not find any information on LevelX in WICED Studio. Regarding wear-leveling, there is a field fx_media_driver_free_sector_update that is a member of structure FX_MEDIA. According to the FileX User Guide, "The DRIVER sets this to FX_TRUE when it needs to know when clusters are released. This is important for FLASH wear-leveling drivers." You can check the same in ../libraries/filesystems/FileX/WICED/filex_to_block_device_driver.c.