Filtering the List of Variables

To represent the variables more clearly, you can filter the listing of the variables according to your demands. Follow this procedure:

Select the appropriate filter from the toolbar.
The individual filters are grouped by functions. In the toolbar, this is highlighted by a separator bar. You can combine the various filters with one another as follows:
Within groups, filters can be combined by logical OR operators.
Between groups, filters can be combined by logical AND operators.

You can also