The bars should only feature icons for the following non-destructive actions: add, edit and move. The delete icon must go and only remain accessible via the action bar.

So here are the actions for the different bar types:

• page bar: none
• area bar:
  • non-optional: edit (if editable)
  • optional, not created yet: add, edit (if editable)
  • optional, created: edit (if editable)
• component bar: edit, move
• placeholder "bar": add

The actions to delete components and to remove optional areas are available on the Action bar only.