<p>Selecting a tariff table is easy. Simply select the tariff table you want to use from the drop-down menu at the left-hand side of the screen as shown below:</p>

<img class="screenshot" src="http://www.tri-line.com/common/img/documentation/tim_plus/tariff_editor_2.png" alt="Tariff editor" />

<p>The previous blank screen will be replaced by the one below:</p>

<img class="screenshot" src="http://www.tri-line.com/common/img/documentation/tim_plus/tariff_editor_3.png" alt="Tariff editor" />