As an example, in the Fig. 1 it is shown the situation when you put the mouse over the button which activates the contour lines menu.
Fig. 1
| In order to make easier the button operations, if you simply put the mouse over a button a special, short, descriptive text is displayed to identify its functionality. As an example, in the Fig. 1 it is shown the situation when you put the mouse over the button which activates the contour lines menu. |
Fig. 1 |