Filter Hook: Filter the dozent_text_format(); return value

Action Hook: Course Loop Footer Template

Filter Hook: If validator fail, stop script

Filter Hook: Filter the default nicename of dozent user URL

Action Hook: Video Template

Filter Hook: Filter to default start video stream behaviour

Filter Hook: Withdrawal has been processed, redirecting back

Action Hook: Course Archive Sidebar

Action Hook: Complete the course content first

Action Hook: Intro Video