Use one of the following ways to scroll through the available subdiagrams:
Click the decrement and increment arrows in the structure selector label, if available.
(Windows) Move the cursor over the selector label and press the <Ctrl> key while moving the mouse wheel. (Linux) Move the cursor over the selector label and press the <Meta> key.
Use one of the following ways to move to a specific subdiagram:
Click the down arrow next to the case or frame name and select the subdiagram from the shortcut menu.
Right-click the structure border and select Show Case or Show Frame. Select the case or frame label from the shortcut menu.