Question: what are all the ctrl alt commands?
Answer: Ctrl + A: Select all items in a window. Ctrl + C or Ctrl + Insert: Copy selected or highlighted item (e.g. text, images and so on). Ctrl + V or Shift + Insert: Paste selected or highlighted item. Ctrl + X: Cut selected or highlighted item. Ctrl + Z: Undo previous action. Ctrl + Y: Redo action.