...
Select the entity type.
Select Edit on the Keyword proximity or Defined list section.
Click the ellipses (…).
Select Manage keywords from the menu that displays.
On the Keywords page, click the ellipses (…) on the top of the page.
Select Add keywords from the menu that appears.
Enter the keywords you want to add to the entity type.
Select Add to add the keyword.
Adding Keywords Using a CSV File
...
Select the entity type.
Select Edit on the Keyword proximity or Defined list section.
Click the ellipses (…).
Select Manage keywords from the menu that displays.
On the Keywords page, click the ellipses (…) on the top of the page.
Select Upload CSV file.
Select Upload on the Upload a CSV file modal that appears.
Use the dialog box to select the CSV file that contains the keywords.
Once you select the file, select Done.
The keywords in the file will be added to the entity type.