Go to Contents section. 

Click on the content you would like to change the name of. Now you are on viewing your content details.

Here click on the edit to edit content name.

Go to Contents section. 

Click on the content you would like to delete. Now you are on viewing your content details.(See first image at top).

Click on the delete button to delete the content.

Go to Contents section. 

Click on the content you would like to edit. Now you are on viewing your content details.(See first image at top).

Hover over the content item that you want to delete.

Click on the delete icon on the right.

This action will open up a confirmation modal to avoid mistakes. Click "Yes" if you want to proceed. This action is irreversible.

You can search, filter & edit multiple items at once.

Hover over any playlist item and click on the checkbox to select.

After the click, checkboxes will appear on all items. select more items as you wish, or select all items from the bottom menu.

You can edit the duration, override display rules, or add new item tags on selected items. Let's add "winter" tag on items 1.

Click on Add Item Tags.

Add winter tag and click save.

You will see that the tags are added successfully.