Any key can also be programmed with a macro and can be combined with key modifiers Alt, and/or Ctrl (e.g. Ctrl+Alt+Q, Ctrl+Alt+F1). Macros are multiple presses of various keys in sequence of arbitrary length. The “extra” F keys on the left of the keyboard are essentially reserved for having macros programmed to them, though they mirror the function of the F keys along the top of the keyboard before they are programmed. The keyboard treats both sets of F keys as separate, however. Remapping or programming one of the F keys will not change the function of its counterpart.