Submitted by Joe Sheridan Fenn on Tue, 2018-01-02 17:02
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Drupal 8 - Media - Video Media Type - Manage Form Display - Submission Form Before

1. Video Media Type Submission Form Sample - Before

If we take a look at the Video submission form right after the Source Fields are added, you'll see that these new fields at the bottom of the form.

We actually don't want these fields to show at all on the submission form because they will be automatically filled when a user uploads adds a video. Making them available for editing will only serve to mislead the user, and possibly mess up some data along the way.
Drupal 8 - Media - Video Media Type - Manage Form Display - Manage Form Display Tab

2. Navigate to Video Media Type Form Display Tab

Go to Admin Menu > Structure > Media Types > Video > Manage Form Display
Drupal 8 - Media - Video Media Type - Manage Form Display - Reorder Fields

3. Hide Newly Added Source Fields

Notice that there exists a Disabled section at the bottom of the screen.

Drag the Video ID , Video Source Machine Name, and Local URL fields down into this section.

Additionally, we've moved the Published checkbox up over the URL Alias field.

Click the Save button.
Drupal 8 - Media - Video Media Type - Manage Form Display - Video Submission Form After

4. Video Media Type Submission Form Sample - After

Looking at a sample Video submission form, we can now see that the Video ID, Video Source Machine Name, and Local URL fields are appropriately hidden.