FileBot

FileBot does not modify files, so FileBot itself cannot set or delete embedded metadata for *.mkv or *.mp4 files. You can however configure FileBot to use 3rd party tools such as mkvpropedit to automatically modify embedded metadata.

Example: Automatically set MKV title metadata

e.g. use the -exec option for filebot -rename and filebot -mediainfo calls: e.g. use the --def exec parameter for amc script calls:
Since we are modifying the file content with mkvpropedit after processing files with filebot -rename, using --action copy or --action clone (copy-on-write duplicate) is highly recommended to ensure that the original video files remain unmodified.

Alternative: Custom Post-Processing Script

Custom Post-Processing Scripts › Set Media Title

Alternative: Write Embedded Tags

Script Repository › Write Embedded Tags