How to do it...

1. To customize the form display mode, go to Structure and then Content Types.
2. We will modify the Article content type's form. Click on the expand the OPERATIONS dropdown and select Manage form display.

1. First, we will modify the Comments field. Click on the drag icon to the left and drag the row into the Disabled section. Follow the same steps for the sticky at top of lists field:

1. Click on the settings cog for the Body field. Enter in a placeholder for the field, such as Enter your article text here. Click on Update.

1. Click on the Save button at the bottom of the page to save your changes. You have now customized the form display.

1. Go to Content | Add Content and then to Article. Note that the comment settings are no longer displayed nor are the sticky options under promotion options: