The Graph Menu

Graph -> Add/Remove curve

Opens the Add/Remove curve dialog, allowing to easily add or remove curves from the active plot layer.

Graph -> Add Error Bars (Ctrl+B)

Opens the Error Bars dialog.

Graph -> Add function curve (Ctrl+Alt+F)

Opens the Add function curve dialog.

Graph -> Rescale to show all (Ctrl+R)

Rescale the active plot layer after a zoom operation.

Graph -> New Legend (Ctrl+L)

Adds a new legend object to the active plot layer.

Graph -> Add image

Opens a file dialog allowing you to select an image to be added to the active plot layer. Only a link to the image file will be saved into the project file and not the image itself. The new image is added to the left-top corner of the layer and can be moved by drag-and-drop.

Graph -> Add Text

Opens a dialog allowing you to select whether the text is to be added to the active plot layer or on a new layer. The cursor changes to an edit text cursor. Next, you must click in the plot window to specify the position of the new text box. A text dialog will pop-up allowing you to type the new text to be displayed and all its properties (color, font, etc...)

Graph -> Draw arrow/line

Changes the active layer operation mode to the drawing mode. You must click on the layer canvas in order to specify the starting point for the new arrow, and then click once more to specify its ending point. You can edit the new arrow using the Arrow dialog. You can swith back to the normal operting mode by clicking the "Pointer" icon in the Plot toolbar.

Graph -> Add Layer

Opens a dialog allowing you to select whether the new layer is to be added to the left-top corner of the plot window or to a best-guess position (based on a layer positioning algorithm in columns and rows).

Graph -> Delete Layer

Deletes the active layer and prompts out a question dialog allowing you to choose whether the remaining layers should be automatically re-arranged or not.

Graph -> Arrange/Custom Layers

Opens the Arrange layers dialog, allowing you to custom the layout of the active 2D plot window.