To delete an item from the repository:
Navigate to the item, and select it.
Tip: You can perform this procedure on multiple items by selecting multiple items.
Select File > Delete.
If prompted to select whether to delete related items, make the appropriate selections, and then do one of these:
If deleting one item, click OK.
If deleting multiple items, make selections for each item individually by clicking Next. After the last item, click Finish.
Tip: To apply selections to all remaining files at once, click Finish.