Provided is an operation apparatus including: a touch panel which selectably displays a plurality of function item keys, and selection item keys corresponding to each of the plurality of function item keys; a shortcut acceptance unit which generates an icon-attached function item key by pasting to a pasting target function item key which is a function item key, an icon indicating a shortcut of a function item key which is different from the pasting target function item key, and selectably displays the icon-attached function item key, and accepts a selection of the icon-attached function item key; and a integrated screen selection acceptance unit which displays a integrated selection screen which selectably displays in a same screen a selection item key which corresponds to the pasting target function item key, and a selection item key which corresponds to a function item key identified by an icon in the touch screen.