You can delete a HUD element under a HUD asset in the Navigator window. If you delete a HUD element, then all its properties are also deleted. 
To delete a HUD element under a HUD asset in the Navigator window:
- Select a HUD element in the Navigator window. 
 
- Right-click and select Delete from the context menu. 
 
If you want to temporarily hide one or more HUD elements from the 
Properties pane, right-click on the element(s) and select 
Remove Object.