Fits all items in the active view if no items are currently selected. However, if any items are selected in the drawing or if you select a row in the Engineering Data Editor representing an item, the command fits only the selected items in the active view. If only one item is selected in the drawing, the command zooms to the selected item. This command is available only when a Drawing view is active.
If no selection is defined, right-click to access Fit from the shortcut menu.