Custom Filter based on custom post type / relationship field. Post date Home › Forums › Calendar Products › Filter Bar › Custom Filter based on custom post type / relationship field. This topic has 4 replies, 4 voices, and was last updated 6 years, 1 month ago by Support Droid. Viewing 1 post (of 1 total) Author Posts February 13, 2018 at 5:19 pm #1452401 Support DroidKeymaster This support thread is private. Author Posts Viewing 1 post (of 1 total) The topic ‘Custom Filter based on custom post type / relationship field.’ is closed to new replies. → Please verify your API key is correctly entered on the settings