Enter the distance and ride data at the time slot data.
TIP: In the editor you can collapse the category Travel costs with the 
button to save some space. The collapsed or expanded state of the category will be saved. The information panel of the week grid and week list will follow these setting (except when there is data, then the category data is always shown).
Under Maintenance and settings | Fields can be set at the Hours aspect if travel costs are to be registered.
Under Invoicing | Settings | Invoicing can be set if travel costs should also be invoiced.
Travel costs tariffs can be entered under Master data | Tariff agreements on the Travel costs tariffs tab.