Operation system

An operation system comprising:

• a display unit for displaying windows including
• (i) a plurality of first windows, and
• (ii) a plurality of second windows, which are hierarchical at a plurality of layers and have items individually linked with windows to be displayed when a selection operation is performed for each of the items, wherein a first window is displayed by a selection procedure of repeating the selection operation;
• a storage unit configured to store as a selection record an association between (i) a certain item included in a certain second window and selected in a latest selection procedure and (ii) a certain first window displayed by the latest selection procedure;
• a skip instruction unit configured to indicate skipping of displaying at least one second window previously displayed between the certain second window and the certain first window, while specifying the certain item in the certain second window with a selection operation;
• and
• a display control unit configured to skip the at least one second window based on the stored selection record when the skip instruction unit indicates the skipping.

A method for displaying windows including (i) a plurality of first windows, and (ii) a plurality of second windows, which are hierarchical at a plurality of layers and have items individually linked with windows to be displayed when a selection operation is performed for each of the items, wherein a first window is displayed by a selection procedure of repeating the selection operation,

• the method comprising:
• storing as a selection record an association between (i) a certain item included in a certain second window and selected in a latest selection procedure and (ii) a certain first window displayed by the latest selection procedure;
• indicating skipping of displaying at least one second window previously displayed between the certain second window and the certain first window, while specifying the certain item in the certain second window with a selection operation;
• and
• skipping the at least one second window based on the stored selection record when the skipping is indicated.