In addition to the scanned value GraphLabels, general purpose GraphLabels can be manipulated using the "New", "Delete", and "Edit" GraphLabel action buttons on the left of the GraphLogView display. The "New" action button creates a label in the graph area. The "Delete" action button removes selected labels or all the labels if none are selected. The "Edit" action button brings up an Edit dialog for the selected labels. Editing a label allows the user to change the text or font of the label, using a standard XWindows font specification string.