A shovel comprising: a lower traveling body; an upper turning body rotatably mounted on the lower traveling body; an attachment attached to the upper turning body; an orientation sensor configured to detect an orientation of the attachment, to derive a position of a work portion of the attachment; a construction support system configured to support construction using the shovel, by displaying a setting screen that enables a setting of a relative relationship between the work portion of the attachment and a target surface; an operator's compartment provided to the upper turning body; a display device provided in the operator's compartment; an operation unit provided in the operator's compartment; and an input device provided in the operator's compartment; characterized in, that a plurality of setting screens are displayed on the display device in a manner in which one of the screens displayed on the display device is sequentially switched to another one of the screens in accordance with a given order, each time the operation unit is operated, at least one of the plurality of setting screens being the setting screen that enables the setting of the relative relationship between the work portion of the attachment and the target surface, and the setting screen that enables the setting of the relative relationship between the work portion of the attachment and the target surface is displayed on the display device in response to an operation of the input device, regardless of the given order. a lower traveling body; an upper turning body rotatably mounted on the lower traveling body; an attachment attached to the upper turning body; an orientation sensor configured to detect an orientation of the attachment, to derive a position of a work portion of the attachment; a construction support system configured to support construction using the shovel, by displaying a setting screen that enables a setting of a relative relationship between the work portion of the attachment and a target surface; an operator's compartment provided to the upper turning body; a display device provided in the operator's compartment; an operation unit provided in the operator's compartment; and an input device provided in the operator's compartment; characterized in, that a plurality of setting screens are displayed on the display device in a manner in which one of the screens displayed on the display device is sequentially switched to another one of the screens in accordance with a given order, each time the operation unit is operated, at least one of the plurality of setting screens being the setting screen that enables the setting of the relative relationship between the work portion of the attachment and the target surface, and the setting screen that enables the setting of the relative relationship between the work portion of the attachment and the target surface is displayed on the display device in response to an operation of the input device, regardless of the given order. an orientation sensor configured to detect an orientation of the attachment, to derive a position of a work portion of the attachment; a construction support system configured to support construction using the shovel, by displaying a setting screen that enables a setting of a relative relationship between the work portion of the attachment and a target surface; an operator's compartment provided to the upper turning body; a display device provided in the operator's compartment; an operation unit provided in the operator's compartment; and an input device provided in the operator's compartment; characterized in, that a plurality of setting screens are displayed on the display device in a manner in which one of the screens displayed on the display device is sequentially switched to another one of the screens in accordance with a given order, each time the operation unit is operated, at least one of the plurality of setting screens being the setting screen that enables the setting of the relative relationship between the work portion of the attachment and the target surface, and the setting screen that enables the setting of the relative relationship between the work portion of the attachment and the target surface is displayed on the display device in response to an operation of the input device, regardless of the given order.