To delete an item from the Browser , select the item and do a left click on the "Trash" icon 
at the right side of the Browser or do a right click on the selected item. the "Delete" function is displayed in a menu.
Attention : It is not possible to delete :
•A item belonging to another user (except if the right is given)
•An item with the RTB and/or Broadcastable validation(s).
•A locked item
•An item in use